Shareholder Report
|
6 Months Ended |
|
Mar. 31, 2026
USD ($)
Holding
|
|---|
| Shareholder Report [Line Items] |
|
|
| Document Type |
N-CSRS
|
|
| Amendment Flag |
false
|
|
| Registrant Name |
BlackRock Funds II
|
|
| Entity Central Index Key |
0001398078
|
|
| Entity Investment Company Type |
N-1A
|
|
| Document Period End Date |
Mar. 31, 2026
|
|
| C000050687 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 80/20 Target Allocation Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
BRAPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 80/20 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$30(a) |
0.60%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 30
|
[1] |
| Expense Ratio, Percent |
0.60%
|
[1],[2] |
| Net Assets |
$ 2,354,998,741
|
|
| Holdings Count | Holding |
21
|
|
| Investment Company Portfolio Turnover |
34.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,354,998,741 |
| Number of Portfolio Holdings |
21 |
| Portfolio Turnover Rate |
34% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
82.4 |
% |
| Fixed-Income Funds |
16.0 |
% |
| Short-Term Securities |
1.6 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000166010 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 80/20 Target Allocation Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
BKAPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 80/20 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$4(a) |
0.08%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 4
|
[3] |
| Expense Ratio, Percent |
0.08%
|
[3],[4] |
| Net Assets |
$ 2,354,998,741
|
|
| Holdings Count | Holding |
21
|
|
| Investment Company Portfolio Turnover |
34.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,354,998,741 |
| Number of Portfolio Holdings |
21 |
| Portfolio Turnover Rate |
34% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
82.4 |
% |
| Fixed-Income Funds |
16.0 |
% |
| Short-Term Securities |
1.6 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050686 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 80/20 Target Allocation Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
BCAPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 80/20 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$59(a) |
1.19%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 59
|
[5] |
| Expense Ratio, Percent |
1.19%
|
[5],[6] |
| Net Assets |
$ 2,354,998,741
|
|
| Holdings Count | Holding |
21
|
|
| Investment Company Portfolio Turnover |
34.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,354,998,741 |
| Number of Portfolio Holdings |
21 |
| Portfolio Turnover Rate |
34% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
82.4 |
% |
| Fixed-Income Funds |
16.0 |
% |
| Short-Term Securities |
1.6 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050685 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 80/20 Target Allocation Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
BAAPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 80/20 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$22(a) |
0.44%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 22
|
[7] |
| Expense Ratio, Percent |
0.44%
|
[7],[8] |
| Net Assets |
$ 2,354,998,741
|
|
| Holdings Count | Holding |
21
|
|
| Investment Company Portfolio Turnover |
34.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,354,998,741 |
| Number of Portfolio Holdings |
21 |
| Portfolio Turnover Rate |
34% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
82.4 |
% |
| Fixed-Income Funds |
16.0 |
% |
| Short-Term Securities |
1.6 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050684 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 80/20 Target Allocation Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
BIAPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 80/20 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$5(a) |
0.10%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 5
|
[9] |
| Expense Ratio, Percent |
0.10%
|
[9],[10] |
| Net Assets |
$ 2,354,998,741
|
|
| Holdings Count | Holding |
21
|
|
| Investment Company Portfolio Turnover |
34.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,354,998,741 |
| Number of Portfolio Holdings |
21 |
| Portfolio Turnover Rate |
34% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
82.4 |
% |
| Fixed-Income Funds |
16.0 |
% |
| Short-Term Securities |
1.6 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| International Tilts Master Portfolio |
12.2 |
% |
| iShares Core S&P 500 ETF |
11.8 |
% |
| iShares S&P 500 Value ETF |
10.3 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
9.1 |
% |
| iShares S&P 500 Growth ETF |
8.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
8.1 |
% |
| BlackRock Total Return Fund, Class K |
5.1 |
% |
| iShares MSCI U.S.A. Quality Factor ETF |
4.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
4.0 |
% |
| iShares Large Cap Core Active ETF |
4.0 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050742 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 40/60 Target Allocation Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
BIMPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 40/60 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$3(a) |
0.07%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 3
|
[11] |
| Expense Ratio, Percent |
0.07%
|
[11],[12] |
| Net Assets |
$ 782,852,892
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
32.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$782,852,892 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
32% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
55.6 |
% |
| Equity Funds |
42.5 |
% |
| Short-Term Securities |
1.9 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050743 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 40/60 Target Allocation Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
BAMPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 40/60 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$20(a) |
0.41%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 20
|
[13] |
| Expense Ratio, Percent |
0.41%
|
[13],[14] |
| Net Assets |
$ 782,852,892
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
32.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$782,852,892 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
32% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
55.6 |
% |
| Equity Funds |
42.5 |
% |
| Short-Term Securities |
1.9 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050744 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 40/60 Target Allocation Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
BCMPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 40/60 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$57(a) |
1.15%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 57
|
[15] |
| Expense Ratio, Percent |
1.15%
|
[15],[16] |
| Net Assets |
$ 782,852,892
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
32.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$782,852,892 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
32% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
55.6 |
% |
| Equity Funds |
42.5 |
% |
| Short-Term Securities |
1.9 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000166011 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 40/60 Target Allocation Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
BKMPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 40/60 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$2(a) |
0.05%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 2
|
[17] |
| Expense Ratio, Percent |
0.05%
|
[17],[18] |
| Net Assets |
$ 782,852,892
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
32.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$782,852,892 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
32% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
55.6 |
% |
| Equity Funds |
42.5 |
% |
| Short-Term Securities |
1.9 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050745 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 40/60 Target Allocation Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
BRMPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 40/60 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$28(a) |
0.57%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 28
|
[19] |
| Expense Ratio, Percent |
0.57%
|
[19],[20] |
| Net Assets |
$ 782,852,892
|
|
| Holdings Count | Holding |
25
|
|
| Investment Company Portfolio Turnover |
32.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$782,852,892 |
| Number of Portfolio Holdings |
25 |
| Portfolio Turnover Rate |
32% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
55.6 |
% |
| Equity Funds |
42.5 |
% |
| Short-Term Securities |
1.9 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
14.0 |
% |
| iShares 10-20 Year Treasury Bond ETF |
9.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
8.1 |
% |
| iShares U.S. Treasury Bond ETF |
7.1 |
% |
| International Tilts Master Portfolio |
5.9 |
% |
| iShares Core S&P 500 ETF |
5.8 |
% |
| iShares S&P 500 Value ETF |
5.1 |
% |
| iShares Securitized Income Active ETF |
5.1 |
% |
| iShares S&P 500 Growth ETF |
4.8 |
% |
| iShares Flexible Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050788 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 20/80 Target Allocation Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
BRCPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 20/80 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$35(a) |
0.69%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 35
|
[21] |
| Expense Ratio, Percent |
0.69%
|
[21],[22] |
| Net Assets |
$ 441,174,134
|
|
| Holdings Count | Holding |
20
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$441,174,134 |
| Number of Portfolio Holdings |
20 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
77.5 |
% |
| Equity Funds |
22.4 |
% |
| Short-Term Securities |
0.1 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000166012 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 20/80 Target Allocation Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
BKCPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 20/80 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$1(a) |
0.02%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 1
|
[23] |
| Expense Ratio, Percent |
0.02%
|
[23],[24] |
| Net Assets |
$ 441,174,134
|
|
| Holdings Count | Holding |
20
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$441,174,134 |
| Number of Portfolio Holdings |
20 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
77.5 |
% |
| Equity Funds |
22.4 |
% |
| Short-Term Securities |
0.1 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050787 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 20/80 Target Allocation Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
BCCPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 20/80 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$56(a) |
1.12%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 56
|
[25] |
| Expense Ratio, Percent |
1.12%
|
[25],[26] |
| Net Assets |
$ 441,174,134
|
|
| Holdings Count | Holding |
20
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$441,174,134 |
| Number of Portfolio Holdings |
20 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
77.5 |
% |
| Equity Funds |
22.4 |
% |
| Short-Term Securities |
0.1 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050786 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 20/80 Target Allocation Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
BACPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 20/80 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$19(a) |
0.38%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 19
|
[27] |
| Expense Ratio, Percent |
0.38%
|
[27],[28] |
| Net Assets |
$ 441,174,134
|
|
| Holdings Count | Holding |
20
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$441,174,134 |
| Number of Portfolio Holdings |
20 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
77.5 |
% |
| Equity Funds |
22.4 |
% |
| Short-Term Securities |
0.1 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050785 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 20/80 Target Allocation Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
BICPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 20/80 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$2(a) |
0.04%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 2
|
[29] |
| Expense Ratio, Percent |
0.04%
|
[29],[30] |
| Net Assets |
$ 441,174,134
|
|
| Holdings Count | Holding |
20
|
|
| Investment Company Portfolio Turnover |
38.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$441,174,134 |
| Number of Portfolio Holdings |
20 |
| Portfolio Turnover Rate |
38% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Fixed-Income Funds |
77.5 |
% |
| Equity Funds |
22.4 |
% |
| Short-Term Securities |
0.1 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
17.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
12.1 |
% |
| iShares U.S. Treasury Bond ETF |
10.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
10.0 |
% |
| iShares Securitized Income Active ETF |
6.1 |
% |
| iShares Flexible Income Active ETF |
6.1 |
% |
| iShares Core International Aggregate Bond ETF |
6.0 |
% |
| iShares Systematic Bond ETF |
5.0 |
% |
| iShares S&P 500 Value ETF |
4.0 |
% |
| iShares Core S&P 500 ETF |
3.8 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050829 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 60/40 Target Allocation Fund
|
|
| Class Name |
Institutional Shares
|
|
| Trading Symbol |
BIGPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 60/40 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$4(a) |
0.08%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 4
|
[31] |
| Expense Ratio, Percent |
0.08%
|
[31],[32] |
| Net Assets |
$ 2,022,928,933
|
|
| Holdings Count | Holding |
22
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,022,928,933 |
| Number of Portfolio Holdings |
22 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
61.9 |
% |
| Fixed-Income Funds |
35.4 |
% |
| Short-Term Securities |
2.7 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050830 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 60/40 Target Allocation Fund
|
|
| Class Name |
Investor A Shares
|
|
| Trading Symbol |
BAGPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 60/40 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$21(a) |
0.42%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 21
|
[33] |
| Expense Ratio, Percent |
0.42%
|
[33],[34] |
| Net Assets |
$ 2,022,928,933
|
|
| Holdings Count | Holding |
22
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,022,928,933 |
| Number of Portfolio Holdings |
22 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
61.9 |
% |
| Fixed-Income Funds |
35.4 |
% |
| Short-Term Securities |
2.7 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050831 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 60/40 Target Allocation Fund
|
|
| Class Name |
Investor C Shares
|
|
| Trading Symbol |
BCGPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 60/40 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$58(a) |
1.16%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 58
|
[35] |
| Expense Ratio, Percent |
1.16%
|
[35],[36] |
| Net Assets |
$ 2,022,928,933
|
|
| Holdings Count | Holding |
22
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,022,928,933 |
| Number of Portfolio Holdings |
22 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
61.9 |
% |
| Fixed-Income Funds |
35.4 |
% |
| Short-Term Securities |
2.7 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000166013 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 60/40 Target Allocation Fund
|
|
| Class Name |
Class K Shares
|
|
| Trading Symbol |
BKGPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 60/40 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$3(a) |
0.06%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 3
|
[37] |
| Expense Ratio, Percent |
0.06%
|
[37],[38] |
| Net Assets |
$ 2,022,928,933
|
|
| Holdings Count | Holding |
22
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,022,928,933 |
| Number of Portfolio Holdings |
22 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
61.9 |
% |
| Fixed-Income Funds |
35.4 |
% |
| Short-Term Securities |
2.7 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| C000050832 [Member] |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
BlackRock 60/40 Target Allocation Fund
|
|
| Class Name |
Class R Shares
|
|
| Trading Symbol |
BRGPX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about BlackRock 60/40 Target Allocation Fund (the “Fund”) for the period of October 1, 2025 to March 31, 2026.
|
|
| 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 |
$30(a) |
0.61%(a)(b) |
| (a) |
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| (b) |
Annualized. |
|
|
| Expenses Paid, Amount |
$ 30
|
[39] |
| Expense Ratio, Percent |
0.61%
|
[39],[40] |
| Net Assets |
$ 2,022,928,933
|
|
| Holdings Count | Holding |
22
|
|
| Investment Company Portfolio Turnover |
28.00%
|
|
| Additional Fund Statistics [Text Block] |
Key Fund statistics
| Net Assets |
$2,022,928,933 |
| Number of Portfolio Holdings |
22 |
| Portfolio Turnover Rate |
28% |
|
|
| Holdings [Text Block] |
What did the Fund invest in? (as of March 31, 2026) Portfolio composition
| Investment Type |
Percent of Total
Investments |
|
| Equity Funds |
61.9 |
% |
| Fixed-Income Funds |
35.4 |
% |
| Short-Term Securities |
2.7 |
% | Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
| Largest Holdings [Text Block] |
Ten largest holdings
| Security |
Percent of Total
Investments(a) |
|
| BlackRock Total Return Fund, Class K |
11.1 |
% |
| International Tilts Master Portfolio |
9.1 |
% |
| iShares Core S&P 500 ETF |
7.9 |
% |
| iShares S&P 500 Value ETF |
7.3 |
% |
| iShares S&P 500 Growth ETF |
6.7 |
% |
| iShares Core MSCI Emerging Markets ETF |
6.1 |
% |
| iShares U.S. Equity Factor Rotation Active ETF |
6.1 |
% |
| BlackRock Strategic Income Opportunities Portfolio, Class K |
6.1 |
% |
| iShares 10-20 Year Treasury Bond ETF |
6.1 |
% |
| iShares Securitized Income Active ETF |
4.1 |
% |
| (a) |
Excludes short-term securities. |
|
|
|
|