Shareholder Report
|
6 Months Ended |
|
Jun. 30, 2025
USD ($)
Holding
|
|---|
| Shareholder Report [Line Items] |
|
|
| Document Type |
N-CSRS
|
|
| Amendment Flag |
false
|
|
| Registrant Name |
BlackRock Funds III
|
|
| Entity Central Index Key |
0000893818
|
|
| Entity Investment Company Type |
N-1A
|
|
| Document Period End Date |
Jun. 30, 2025
|
|
| C000011998 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2030 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
STLDX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2030 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$24(a) |
0.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 24
|
[1] |
| Expense Ratio, Percent |
0.47%
|
[1],[2] |
| Net Assets |
$ 482,296,986
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
21.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$482,296,986 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
21% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
55.2 |
% |
| Fixed-Income Funds |
35.0 |
% |
| Money Market Funds |
12.5 |
% |
| Liabilities in Excess of Other Assets |
(2.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% | (b)Excludes short-term securities.
|
|
| C000011997 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2030 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPRDX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2030 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$37(a) |
0.72%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 37
|
[3] |
| Expense Ratio, Percent |
0.72%
|
[3],[4] |
| Net Assets |
$ 482,296,986
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
21.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$482,296,986 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
21% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
55.2 |
% |
| Fixed-Income Funds |
35.0 |
% |
| Money Market Funds |
12.5 |
% |
| Liabilities in Excess of Other Assets |
(2.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% | (b)Excludes short-term securities.
|
|
| C000088835 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2030 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPCNX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2030 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$75(a) |
1.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 75
|
[5] |
| Expense Ratio, Percent |
1.47%
|
[5],[6] |
| Net Assets |
$ 482,296,986
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
21.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$482,296,986 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
21% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
55.2 |
% |
| Fixed-Income Funds |
35.0 |
% |
| Money Market Funds |
12.5 |
% |
| Liabilities in Excess of Other Assets |
(2.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% | (b)Excludes short-term securities.
|
|
| C000051481 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2030 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPSDX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2030 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$11(a) |
0.22%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 11
|
[7] |
| Expense Ratio, Percent |
0.22%
|
[7],[8] |
| Net Assets |
$ 482,296,986
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
21.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$482,296,986 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
21% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
55.2 |
% |
| Fixed-Income Funds |
35.0 |
% |
| Money Market Funds |
12.5 |
% |
| Liabilities in Excess of Other Assets |
(2.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% | (b)Excludes short-term securities.
|
|
| C000082487 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2030 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPRNX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2030 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$47(a) |
0.92%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 47
|
[9] |
| Expense Ratio, Percent |
0.92%
|
[9],[10] |
| Net Assets |
$ 482,296,986
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
21.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$482,296,986 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
21% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
55.2 |
% |
| Fixed-Income Funds |
35.0 |
% |
| Money Market Funds |
12.5 |
% |
| Liabilities in Excess of Other Assets |
(2.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
30.4 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
22.9 |
% |
| International Tilts Master Portfolio |
9.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
8.4 |
% |
| iShares Core MSCI Emerging Markets ETF |
5.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.7 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.7 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.6 |
% |
| BlackRock Real Estate Securities Fund |
1.5 |
% |
| iShares Global Infrastructure ETF |
1.5 |
% | (b)Excludes short-term securities.
|
|
| C000012000 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2040 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
STLEX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2040 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$24(a) |
0.46%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 24
|
[11] |
| Expense Ratio, Percent |
0.46%
|
[11],[12] |
| Net Assets |
$ 495,026,979
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
18.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$495,026,979 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
18% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
73.1 |
% |
| Fixed-Income Funds |
20.1 |
% |
| Money Market Funds |
16.7 |
% |
| Liabilities in Excess of Other Assets |
(9.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000011999 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2040 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPREX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2040 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$37(a) |
0.71%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 37
|
[13] |
| Expense Ratio, Percent |
0.71%
|
[13],[14] |
| Net Assets |
$ 495,026,979
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
18.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$495,026,979 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
18% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
73.1 |
% |
| Fixed-Income Funds |
20.1 |
% |
| Money Market Funds |
16.7 |
% |
| Liabilities in Excess of Other Assets |
(9.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000088838 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2040 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPCKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2040 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$75(a) |
1.46%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 75
|
[15] |
| Expense Ratio, Percent |
1.46%
|
[15],[16] |
| Net Assets |
$ 495,026,979
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
18.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$495,026,979 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
18% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
73.1 |
% |
| Fixed-Income Funds |
20.1 |
% |
| Money Market Funds |
16.7 |
% |
| Liabilities in Excess of Other Assets |
(9.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000051482 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2040 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPSFX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2040 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$11(a) |
0.21%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 11
|
[17] |
| Expense Ratio, Percent |
0.21%
|
[17],[18] |
| Net Assets |
$ 495,026,979
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
18.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$495,026,979 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
18% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
73.1 |
% |
| Fixed-Income Funds |
20.1 |
% |
| Money Market Funds |
16.7 |
% |
| Liabilities in Excess of Other Assets |
(9.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000082488 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2040 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPRKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2040 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$47(a) |
0.91%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 47
|
[19] |
| Expense Ratio, Percent |
0.91%
|
[19],[20] |
| Net Assets |
$ 495,026,979
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
18.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$495,026,979 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
18% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
73.1 |
% |
| Fixed-Income Funds |
20.1 |
% |
| Money Market Funds |
16.7 |
% |
| Liabilities in Excess of Other Assets |
(9.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
38.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
15.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
2.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.3 |
% |
| iShares Global Infrastructure ETF |
1.8 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000012002 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic Retirement Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
STLAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic Retirement Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$24(a) |
0.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 24
|
[21] |
| Expense Ratio, Percent |
0.47%
|
[21],[22] |
| Net Assets |
$ 465,700,810
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
17.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$465,700,810 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
17% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Fixed-Income Funds |
49.2 |
% |
| Equity Funds |
43.7 |
% |
| Money Market Funds |
6.5 |
% |
| Other Assets Less Liabilities |
0.6 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% | (b)Excludes short-term securities.
|
|
| C000012001 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic Retirement Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPRAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic Retirement Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$37(a) |
0.72%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 37
|
[23] |
| Expense Ratio, Percent |
0.72%
|
[23],[24] |
| Net Assets |
$ 465,700,810
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
17.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$465,700,810 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
17% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Fixed-Income Funds |
49.2 |
% |
| Equity Funds |
43.7 |
% |
| Money Market Funds |
6.5 |
% |
| Other Assets Less Liabilities |
0.6 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% | (b)Excludes short-term securities.
|
|
| C000088841 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic Retirement Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPCRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic Retirement Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$75(a) |
1.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 75
|
[25] |
| Expense Ratio, Percent |
1.47%
|
[25],[26] |
| Net Assets |
$ 465,700,810
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
17.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$465,700,810 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
17% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Fixed-Income Funds |
49.2 |
% |
| Equity Funds |
43.7 |
% |
| Money Market Funds |
6.5 |
% |
| Other Assets Less Liabilities |
0.6 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% | (b)Excludes short-term securities.
|
|
| C000051483 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic Retirement Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPSAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic Retirement Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$11(a) |
0.22%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 11
|
[27] |
| Expense Ratio, Percent |
0.22%
|
[27],[28] |
| Net Assets |
$ 465,700,810
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
17.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$465,700,810 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
17% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Fixed-Income Funds |
49.2 |
% |
| Equity Funds |
43.7 |
% |
| Money Market Funds |
6.5 |
% |
| Other Assets Less Liabilities |
0.6 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% | (b)Excludes short-term securities.
|
|
| C000082489 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic Retirement Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPRRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic Retirement Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$47(a) |
0.92%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 47
|
[29] |
| Expense Ratio, Percent |
0.92%
|
[29],[30] |
| Net Assets |
$ 465,700,810
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
17.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$465,700,810 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
17% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Fixed-Income Funds |
49.2 |
% |
| Equity Funds |
43.7 |
% |
| Money Market Funds |
6.5 |
% |
| Other Assets Less Liabilities |
0.6 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| BlackRock Diversified Fixed Income Fund, Class K |
39.4 |
% |
| Diversified Equity Master Portfolio |
23.9 |
% |
| iShares 0-5 Year TIPS Bond ETF |
9.8 |
% |
| International Tilts Master Portfolio |
7.3 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares Core MSCI Emerging Markets ETF |
4.0 |
% |
| iShares Global Infrastructure ETF |
1.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.2 |
% |
| BlackRock Real Estate Securities Fund |
0.2 |
% |
| iShares MSCI Canada ETF |
0.2 |
% | (b)Excludes short-term securities.
|
|
| C000063261 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2050 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
STLFX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2050 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$25(a) |
0.48%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 25
|
[31] |
| Expense Ratio, Percent |
0.48%
|
[31],[32] |
| Net Assets |
$ 359,588,817
|
|
| Holdings Count | Holding |
31
|
|
| Investment Company Portfolio Turnover |
27.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$359,588,817 |
| Number of Portfolio Holdings |
31 |
| Portfolio Turnover Rate |
27% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
86.1 |
% |
| Money Market Funds |
20.4 |
% |
| Fixed-Income Funds |
7.4 |
% |
| Liabilities in Excess of Other Assets |
(13.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000063260 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2050 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPRFX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2050 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$38(a) |
0.73%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 38
|
[33] |
| Expense Ratio, Percent |
0.73%
|
[33],[34] |
| Net Assets |
$ 359,588,817
|
|
| Holdings Count | Holding |
31
|
|
| Investment Company Portfolio Turnover |
27.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$359,588,817 |
| Number of Portfolio Holdings |
31 |
| Portfolio Turnover Rate |
27% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
86.1 |
% |
| Money Market Funds |
20.4 |
% |
| Fixed-Income Funds |
7.4 |
% |
| Liabilities in Excess of Other Assets |
(13.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000088844 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2050 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPCPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2050 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$77(a) |
1.48%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 77
|
[35] |
| Expense Ratio, Percent |
1.48%
|
[35],[36] |
| Net Assets |
$ 359,588,817
|
|
| Holdings Count | Holding |
31
|
|
| Investment Company Portfolio Turnover |
27.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$359,588,817 |
| Number of Portfolio Holdings |
31 |
| Portfolio Turnover Rate |
27% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
86.1 |
% |
| Money Market Funds |
20.4 |
% |
| Fixed-Income Funds |
7.4 |
% |
| Liabilities in Excess of Other Assets |
(13.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000063262 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2050 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPSGX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2050 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$12(a) |
0.23%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 12
|
[37] |
| Expense Ratio, Percent |
0.23%
|
[37],[38] |
| Net Assets |
$ 359,588,817
|
|
| Holdings Count | Holding |
31
|
|
| Investment Company Portfolio Turnover |
27.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$359,588,817 |
| Number of Portfolio Holdings |
31 |
| Portfolio Turnover Rate |
27% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
86.1 |
% |
| Money Market Funds |
20.4 |
% |
| Fixed-Income Funds |
7.4 |
% |
| Liabilities in Excess of Other Assets |
(13.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000082490 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2050 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPRPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2050 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$48(a) |
0.93%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 48
|
[39] |
| Expense Ratio, Percent |
0.93%
|
[39],[40] |
| Net Assets |
$ 359,588,817
|
|
| Holdings Count | Holding |
31
|
|
| Investment Company Portfolio Turnover |
27.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$359,588,817 |
| Number of Portfolio Holdings |
31 |
| Portfolio Turnover Rate |
27% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
86.1 |
% |
| Money Market Funds |
20.4 |
% |
| Fixed-Income Funds |
7.4 |
% |
| Liabilities in Excess of Other Assets |
(13.9 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
45.6 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.1 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.0 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
3.9 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
3.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Real Estate Securities Fund |
1.9 |
% |
| iShares MSCI Canada ETF |
0.5 |
% | (b)Excludes short-term securities.
|
|
| C000089955 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2035 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPJIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2035 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$24(a) |
0.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 24
|
[41] |
| Expense Ratio, Percent |
0.47%
|
[41],[42] |
| Net Assets |
$ 382,242,609
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
16.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$382,242,609 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
16% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
66.3 |
% |
| Fixed-Income Funds |
25.9 |
% |
| Money Market Funds |
20.5 |
% |
| Liabilities in Excess of Other Assets |
(12.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% | (b)Excludes short-term securities.
|
|
| C000089953 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2035 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPJAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2035 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$37(a) |
0.72%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 37
|
[43] |
| Expense Ratio, Percent |
0.72%
|
[43],[44] |
| Net Assets |
$ 382,242,609
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
16.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$382,242,609 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
16% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
66.3 |
% |
| Fixed-Income Funds |
25.9 |
% |
| Money Market Funds |
20.5 |
% |
| Liabilities in Excess of Other Assets |
(12.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% | (b)Excludes short-term securities.
|
|
| C000089954 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2035 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPJCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2035 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$75(a) |
1.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 75
|
[45] |
| Expense Ratio, Percent |
1.47%
|
[45],[46] |
| Net Assets |
$ 382,242,609
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
16.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$382,242,609 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
16% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
66.3 |
% |
| Fixed-Income Funds |
25.9 |
% |
| Money Market Funds |
20.5 |
% |
| Liabilities in Excess of Other Assets |
(12.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% | (b)Excludes short-term securities.
|
|
| C000089956 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2035 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPJKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2035 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$11(a) |
0.22%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 11
|
[47] |
| Expense Ratio, Percent |
0.22%
|
[47],[48] |
| Net Assets |
$ 382,242,609
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
16.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$382,242,609 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
16% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
66.3 |
% |
| Fixed-Income Funds |
25.9 |
% |
| Money Market Funds |
20.5 |
% |
| Liabilities in Excess of Other Assets |
(12.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% | (b)Excludes short-term securities.
|
|
| C000089952 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2035 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPJRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2035 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$47(a) |
0.92%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 47
|
[49] |
| Expense Ratio, Percent |
0.92%
|
[49],[50] |
| Net Assets |
$ 382,242,609
|
|
| Holdings Count | Holding |
36
|
|
| Investment Company Portfolio Turnover |
16.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$382,242,609 |
| Number of Portfolio Holdings |
36 |
| Portfolio Turnover Rate |
16% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
66.3 |
% |
| Fixed-Income Funds |
25.9 |
% |
| Money Market Funds |
20.5 |
% |
| Liabilities in Excess of Other Assets |
(12.7 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
36.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
20.7 |
% |
| International Tilts Master Portfolio |
12.3 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| BlackRock Real Estate Securities Fund |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| iShares Global Infrastructure ETF |
1.7 |
% |
| iShares MSCI Canada ETF |
0.3 |
% | (b)Excludes short-term securities.
|
|
| C000089959 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2045 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPHIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2045 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$24(a) |
0.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 24
|
[51] |
| Expense Ratio, Percent |
0.47%
|
[51],[52] |
| Net Assets |
$ 317,134,445
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
26.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$317,134,445 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
26% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
79.7 |
% |
| Money Market Funds |
22.2 |
% |
| Fixed-Income Funds |
13.2 |
% |
| Liabilities in Excess of Other Assets |
(15.1 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% | (b)Excludes short-term securities.
|
|
| C000089957 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2045 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPHAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2045 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$37(a) |
0.72%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 37
|
[53] |
| Expense Ratio, Percent |
0.72%
|
[53],[54] |
| Net Assets |
$ 317,134,445
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
26.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$317,134,445 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
26% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
79.7 |
% |
| Money Market Funds |
22.2 |
% |
| Fixed-Income Funds |
13.2 |
% |
| Liabilities in Excess of Other Assets |
(15.1 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% | (b)Excludes short-term securities.
|
|
| C000089958 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2045 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPHCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2045 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$76(a) |
1.47%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 76
|
[55] |
| Expense Ratio, Percent |
1.47%
|
[55],[56] |
| Net Assets |
$ 317,134,445
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
26.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$317,134,445 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
26% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
79.7 |
% |
| Money Market Funds |
22.2 |
% |
| Fixed-Income Funds |
13.2 |
% |
| Liabilities in Excess of Other Assets |
(15.1 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% | (b)Excludes short-term securities.
|
|
| C000089960 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2045 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPHKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2045 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$11(a) |
0.22%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 11
|
[57] |
| Expense Ratio, Percent |
0.22%
|
[57],[58] |
| Net Assets |
$ 317,134,445
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
26.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$317,134,445 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
26% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
79.7 |
% |
| Money Market Funds |
22.2 |
% |
| Fixed-Income Funds |
13.2 |
% |
| Liabilities in Excess of Other Assets |
(15.1 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% | (b)Excludes short-term securities.
|
|
| C000089961 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2045 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPHRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2045 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$48(a) |
0.92%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 48
|
[59] |
| Expense Ratio, Percent |
0.92%
|
[59],[60] |
| Net Assets |
$ 317,134,445
|
|
| Holdings Count | Holding |
35
|
|
| Investment Company Portfolio Turnover |
26.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$317,134,445 |
| Number of Portfolio Holdings |
35 |
| Portfolio Turnover Rate |
26% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
79.7 |
% |
| Money Market Funds |
22.2 |
% |
| Fixed-Income Funds |
13.2 |
% |
| Liabilities in Excess of Other Assets |
(15.1 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
41.1 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.8 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
8.5 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
4.6 |
% |
| BlackRock Real Estate Securities Fund |
3.6 |
% |
| iShares Core MSCI International Developed Markets ETF |
3.0 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.5 |
% |
| iShares MSCI Canada ETF |
0.6 |
% | (b)Excludes short-term securities.
|
|
| C000089964 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2055 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPVIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2055 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$25(a) |
0.49%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 25
|
[61] |
| Expense Ratio, Percent |
0.49%
|
[61],[62] |
| Net Assets |
$ 264,111,591
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$264,111,591 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
92.4 |
% |
| Money Market Funds |
11.2 |
% |
| Fixed-Income Funds |
2.7 |
% |
| Liabilities in Excess of Other Assets |
(6.3 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% | (b)Excludes short-term securities.
|
|
| C000089962 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2055 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPVAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2055 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$38(a) |
0.74%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 38
|
[63] |
| Expense Ratio, Percent |
0.74%
|
[63],[64] |
| Net Assets |
$ 264,111,591
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$264,111,591 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
92.4 |
% |
| Money Market Funds |
11.2 |
% |
| Fixed-Income Funds |
2.7 |
% |
| Liabilities in Excess of Other Assets |
(6.3 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% | (b)Excludes short-term securities.
|
|
| C000089963 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2055 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPVCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2055 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$77(a) |
1.49%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 77
|
[65] |
| Expense Ratio, Percent |
1.49%
|
[65],[66] |
| Net Assets |
$ 264,111,591
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$264,111,591 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
92.4 |
% |
| Money Market Funds |
11.2 |
% |
| Fixed-Income Funds |
2.7 |
% |
| Liabilities in Excess of Other Assets |
(6.3 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% | (b)Excludes short-term securities.
|
|
| C000089965 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2055 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPVKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2055 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$12(a) |
0.24%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 12
|
[67] |
| Expense Ratio, Percent |
0.24%
|
[67],[68] |
| Net Assets |
$ 264,111,591
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$264,111,591 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
92.4 |
% |
| Money Market Funds |
11.2 |
% |
| Fixed-Income Funds |
2.7 |
% |
| Liabilities in Excess of Other Assets |
(6.3 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% | (b)Excludes short-term securities.
|
|
| C000089966 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2055 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPVRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2055 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$49(a) |
0.94%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 49
|
[69] |
| Expense Ratio, Percent |
0.94%
|
[69],[70] |
| Net Assets |
$ 264,111,591
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$264,111,591 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
92.4 |
% |
| Money Market Funds |
11.2 |
% |
| Fixed-Income Funds |
2.7 |
% |
| Liabilities in Excess of Other Assets |
(6.3 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.1 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.4 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.4 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
1.3 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| BlackRock Real Estate Securities Fund |
0.7 |
% | (b)Excludes short-term securities.
|
|
| C000187070 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2060 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPDIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2060 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$25(a) |
0.49%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 25
|
[71] |
| Expense Ratio, Percent |
0.49%
|
[71],[72] |
| Net Assets |
$ 126,684,506
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$126,684,506 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.5 |
% |
| Money Market Funds |
10.6 |
% |
| Fixed-Income Funds |
2.4 |
% |
| Liabilities in Excess of Other Assets |
(6.5 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000187068 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2060 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPDAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2060 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$38(a) |
0.74%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 38
|
[73] |
| Expense Ratio, Percent |
0.74%
|
[73],[74] |
| Net Assets |
$ 126,684,506
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$126,684,506 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.5 |
% |
| Money Market Funds |
10.6 |
% |
| Fixed-Income Funds |
2.4 |
% |
| Liabilities in Excess of Other Assets |
(6.5 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000187069 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2060 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPDCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2060 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$77(a) |
1.49%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 77
|
[75] |
| Expense Ratio, Percent |
1.49%
|
[75],[76] |
| Net Assets |
$ 126,684,506
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$126,684,506 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.5 |
% |
| Money Market Funds |
10.6 |
% |
| Fixed-Income Funds |
2.4 |
% |
| Liabilities in Excess of Other Assets |
(6.5 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000187072 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2060 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPDKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2060 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$12(a) |
0.24%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 12
|
[77] |
| Expense Ratio, Percent |
0.24%
|
[77],[78] |
| Net Assets |
$ 126,684,506
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$126,684,506 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.5 |
% |
| Money Market Funds |
10.6 |
% |
| Fixed-Income Funds |
2.4 |
% |
| Liabilities in Excess of Other Assets |
(6.5 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000187071 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2060 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPDRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2060 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$48(a) |
0.93%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 48
|
[79] |
| Expense Ratio, Percent |
0.93%
|
[79],[80] |
| Net Assets |
$ 126,684,506
|
|
| Holdings Count | Holding |
34
|
|
| Investment Company Portfolio Turnover |
25.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$126,684,506 |
| Number of Portfolio Holdings |
34 |
| Portfolio Turnover Rate |
25% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.5 |
% |
| Money Market Funds |
10.6 |
% |
| Fixed-Income Funds |
2.4 |
% |
| Liabilities in Excess of Other Assets |
(6.5 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.4 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.2 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.6 |
% |
| iShares Russell 2000 ETF |
0.8 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000213846 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2065 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPWIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2065 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$25(a) |
0.48%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 25
|
[81] |
| Expense Ratio, Percent |
0.48%
|
[81],[82] |
| Net Assets |
$ 57,442,667
|
|
| Holdings Count | Holding |
38
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$57,442,667 |
| Number of Portfolio Holdings |
38 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.8 |
% |
| Money Market Funds |
11.9 |
% |
| Fixed-Income Funds |
2.3 |
% |
| Liabilities in Excess of Other Assets |
(8.0 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000213845 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2065 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPWAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2065 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$38(a) |
0.73%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 38
|
[83] |
| Expense Ratio, Percent |
0.73%
|
[83],[84] |
| Net Assets |
$ 57,442,667
|
|
| Holdings Count | Holding |
38
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$57,442,667 |
| Number of Portfolio Holdings |
38 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.8 |
% |
| Money Market Funds |
11.9 |
% |
| Fixed-Income Funds |
2.3 |
% |
| Liabilities in Excess of Other Assets |
(8.0 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000213843 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2065 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPWCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2065 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$77(a) |
1.48%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 77
|
[85] |
| Expense Ratio, Percent |
1.48%
|
[85],[86] |
| Net Assets |
$ 57,442,667
|
|
| Holdings Count | Holding |
38
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$57,442,667 |
| Number of Portfolio Holdings |
38 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.8 |
% |
| Money Market Funds |
11.9 |
% |
| Fixed-Income Funds |
2.3 |
% |
| Liabilities in Excess of Other Assets |
(8.0 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000213844 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2065 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPWKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2065 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$12(a) |
0.23%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 12
|
[87] |
| Expense Ratio, Percent |
0.23%
|
[87],[88] |
| Net Assets |
$ 57,442,667
|
|
| Holdings Count | Holding |
38
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$57,442,667 |
| Number of Portfolio Holdings |
38 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.8 |
% |
| Money Market Funds |
11.9 |
% |
| Fixed-Income Funds |
2.3 |
% |
| Liabilities in Excess of Other Assets |
(8.0 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000213847 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2065 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPWRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2065 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$48(a) |
0.93%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 48
|
[89] |
| Expense Ratio, Percent |
0.93%
|
[89],[90] |
| Net Assets |
$ 57,442,667
|
|
| Holdings Count | Holding |
38
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$57,442,667 |
| Number of Portfolio Holdings |
38 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
93.8 |
% |
| Money Market Funds |
11.9 |
% |
| Fixed-Income Funds |
2.3 |
% |
| Liabilities in Excess of Other Assets |
(8.0 |
) |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.2 |
% |
| International Tilts Master Portfolio |
14.9 |
% |
| iShares Core MSCI Emerging Markets ETF |
10.8 |
% |
| iShares Core MSCI International Developed Markets ETF |
6.9 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.9 |
% |
| iShares MSCI EAFE Small-Cap ETF |
2.4 |
% |
| iShares MSCI Canada ETF |
2.1 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
1.5 |
% |
| iShares Russell 2000 ETF |
1.2 |
% |
| iShares Broad USD Investment Grade Corporate Bond ETF |
0.8 |
% | (b)Excludes short-term securities.
|
|
| C000251825 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2070 Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
LPYIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2070 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Institutional Shares |
$26(a) |
0.49%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 26
|
[91] |
| Expense Ratio, Percent |
0.49%
|
[91],[92] |
| Net Assets |
$ 4,326,811
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$4,326,811 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
96.8 |
% |
| Fixed-Income Funds |
1.8 |
% |
| Money Market Funds |
0.9 |
% |
| Other Assets Less Liabilities |
0.5 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% | (b)Excludes short-term securities.
|
|
| C000251826 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2070 Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
LPYAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2070 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor A Shares |
$38(a) |
0.73%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 38
|
[93] |
| Expense Ratio, Percent |
0.73%
|
[93],[94] |
| Net Assets |
$ 4,326,811
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$4,326,811 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
96.8 |
% |
| Fixed-Income Funds |
1.8 |
% |
| Money Market Funds |
0.9 |
% |
| Other Assets Less Liabilities |
0.5 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% | (b)Excludes short-term securities.
|
|
| C000251827 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2070 Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
LPYCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2070 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Investor C Shares |
$77(a) |
1.48%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 77
|
[95] |
| Expense Ratio, Percent |
1.48%
|
[95],[96] |
| Net Assets |
$ 4,326,811
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$4,326,811 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
96.8 |
% |
| Fixed-Income Funds |
1.8 |
% |
| Money Market Funds |
0.9 |
% |
| Other Assets Less Liabilities |
0.5 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% | (b)Excludes short-term securities.
|
|
| C000251828 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2070 Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
LPYKX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2070 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class K Shares |
$13(a) |
0.24%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 13
|
[97] |
| Expense Ratio, Percent |
0.24%
|
[97],[98] |
| Net Assets |
$ 4,326,811
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$4,326,811 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
96.8 |
% |
| Fixed-Income Funds |
1.8 |
% |
| Money Market Funds |
0.9 |
% |
| Other Assets Less Liabilities |
0.5 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% | (b)Excludes short-term securities.
|
|
| C000251824 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock LifePath® Dynamic 2070 Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
LPYRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock LifePath® Dynamic 2070 Fund (the “Fund”) for the period of January 1, 2025 to June 30, 2025.
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
|
|
| Additional Information Phone Number |
(800) 441‑7762
|
|
| Additional Information Website |
blackrock.com/fundreports
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months ? (based on a hypothetical $10,000 investment)
| Class name |
Costs of a $10,000
investment |
Costs paid as a percentage of a
$10,000 investment |
| Class R Shares |
$49(a) |
0.94%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 49
|
[99] |
| Expense Ratio, Percent |
0.94%
|
[99],[100] |
| Net Assets |
$ 4,326,811
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
| Key Fund statistics |
|
| Net Assets |
$4,326,811 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of June 30, 2025)
| Portfolio composition |
| Asset Type(a) |
Percent of
Net Assets |
|
| Equity Funds |
96.8 |
% |
| Fixed-Income Funds |
1.8 |
% |
| Money Market Funds |
0.9 |
% |
| Other Assets Less Liabilities |
0.5 |
|
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% |
| (a) |
The portfolio composition above is calculated using a methodology different than that disclosed in the Fund's prospectus. |
| (b) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
| Ten largest holdings |
| Security(b) |
Percent of
Net Assets |
|
| Diversified Equity Master Portfolio |
50.8 |
% |
| International Tilts Master Portfolio |
15.0 |
% |
| iShares Core MSCI Emerging Markets ETF |
11.0 |
% |
| iShares Core MSCI International Developed Markets ETF |
7.7 |
% |
| BlackRock Tactical Opportunities Fund, Class K |
4.8 |
% |
| iShares MSCI Canada ETF |
2.2 |
% |
| iShares Core MSCI EAFE ETF |
1.5 |
% |
| iShares Russell 2000 ETF |
1.5 |
% |
| iShares MSCI EAFE Small-Cap ETF |
1.0 |
% |
| BlackRock Diversified Fixed Income Fund, Class K |
0.9 |
% | (b)Excludes short-term securities.
|
|
|
|