Shareholder Report
|
6 Months Ended |
|
Apr. 30, 2026
USD ($)
Holding
|
|---|
| Shareholder Report [Line Items] |
|
|
| Document Type |
N-CSRS
|
|
| Amendment Flag |
false
|
|
| Registrant Name |
AB BOND FUND, INC.
|
|
| Entity Central Index Key |
0000003794
|
|
| Entity Investment Company Type |
N-1A
|
|
| Document Period End Date |
Apr. 30, 2026
|
|
| Shareholder Report Annual or Semi-Annual |
Semi-Annual Shareholder Report
|
|
| C000085498 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB All Market Real Return Portfolio
|
|
| Class Name |
Advisor Class
|
|
| Trading Symbol |
AMTYX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB All Market Real Return Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/AMTYX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AMTYX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Advisor Class |
$48 |
0.88%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 48
|
|
| Expense Ratio, Percent |
0.88%
|
[1] |
| AssetsNet |
$ 804,626,900
|
|
| Holdings Count | Holding |
389
|
|
| Advisory Fees Paid, Amount |
$ 2,646,876
|
|
| InvestmentCompanyPortfolioTurnover |
47.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$804,626,900 |
# of Portfolio Holdings |
389 |
Portfolio Turnover Rate |
47% |
Total Advisory Fees Paid (Net) |
$2,646,876 | |
|
| Holdings [Text Block] |
Portfolio BreakdownFootnote Reference*
Table Summary
Real Estate Stocks |
36.0% |
Commodity Related Derivatives |
31.0% |
Commodity Related Stocks |
17.0% |
Inflation Sensitive Stocks |
16.0% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Portfolio breakdown is expressed as an approximate percentage of the Fund's net assets inclusive of derivative exposure based on the Adviser's internal classification guidelines. | Security Type Breakdown (% of Net Assets)
Table Summary
Common Stocks |
79.7% |
Investment Companies |
1.8% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
49.9% |
Japan |
5.3% |
United Kingdom |
4.0% |
Australia |
3.9% |
Canada |
3.0% |
France |
2.2% |
Hong Kong |
1.5% |
China |
1.4% |
Switzerland |
1.2% |
Singapore |
1.2% |
Germany |
1.1% |
Spain |
1.1% |
Italy |
0.8% |
Belgium |
0.7% |
Others |
4.2% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | |
|
| Largest Holdings [Text Block] |
Table Summary
Company |
U.S. $ Value |
% of Net Assets |
Welltower, Inc. |
$24,625,274 |
3.1% |
Prologis, Inc. |
$22,305,235 |
2.8% |
Equinix, Inc. |
$17,069,732 |
2.1% |
Digital Realty Trust, Inc. |
$14,531,780 |
1.8% |
Exxon Mobil Corp. |
$12,327,572 |
1.5% |
Simon Property Group, Inc. |
$12,323,233 |
1.5% |
iShares Global Energy ETF |
$11,988,614 |
1.5% |
Shell PLC |
$11,149,861 |
1.4% |
Extra Space Storage, Inc. |
$10,567,291 |
1.3% |
NVIDIA Corp. |
$10,081,478 |
1.3% |
Total |
$146,970,070 |
18.3% | |
|
| Material Fund Change [Text Block] |
|
|
| C000085499 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB All Market Real Return Portfolio
|
|
| Class Name |
Class 1
|
|
| Trading Symbol |
AMTOX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB All Market Real Return Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/AMTOX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AMTOX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class 1 |
$59 |
1.08%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 59
|
|
| Expense Ratio, Percent |
1.08%
|
[2] |
| AssetsNet |
$ 804,626,900
|
|
| Holdings Count | Holding |
389
|
|
| Advisory Fees Paid, Amount |
$ 2,646,876
|
|
| InvestmentCompanyPortfolioTurnover |
47.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$804,626,900 |
# of Portfolio Holdings |
389 |
Portfolio Turnover Rate |
47% |
Total Advisory Fees Paid (Net) |
$2,646,876 | |
|
| Holdings [Text Block] |
Portfolio BreakdownFootnote Reference*
Table Summary
Real Estate Stocks |
36.0% |
Commodity Related Derivatives |
31.0% |
Commodity Related Stocks |
17.0% |
Inflation Sensitive Stocks |
16.0% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Portfolio breakdown is expressed as an approximate percentage of the Fund's net assets inclusive of derivative exposure based on the Adviser's internal classification guidelines. | Security Type Breakdown (% of Net Assets)
Table Summary
Common Stocks |
79.7% |
Investment Companies |
1.8% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
49.9% |
Japan |
5.3% |
United Kingdom |
4.0% |
Australia |
3.9% |
Canada |
3.0% |
France |
2.2% |
Hong Kong |
1.5% |
China |
1.4% |
Switzerland |
1.2% |
Singapore |
1.2% |
Germany |
1.1% |
Spain |
1.1% |
Italy |
0.8% |
Belgium |
0.7% |
Others |
4.2% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | |
|
| Largest Holdings [Text Block] |
Table Summary
Company |
U.S. $ Value |
% of Net Assets |
Welltower, Inc. |
$24,625,274 |
3.1% |
Prologis, Inc. |
$22,305,235 |
2.8% |
Equinix, Inc. |
$17,069,732 |
2.1% |
Digital Realty Trust, Inc. |
$14,531,780 |
1.8% |
Exxon Mobil Corp. |
$12,327,572 |
1.5% |
Simon Property Group, Inc. |
$12,323,233 |
1.5% |
iShares Global Energy ETF |
$11,988,614 |
1.5% |
Shell PLC |
$11,149,861 |
1.4% |
Extra Space Storage, Inc. |
$10,567,291 |
1.3% |
NVIDIA Corp. |
$10,081,478 |
1.3% |
Total |
$146,970,070 |
18.3% | |
|
| Material Fund Change [Text Block] |
|
|
| C000085496 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB All Market Real Return Portfolio
|
|
| Class Name |
Class A
|
|
| Trading Symbol |
AMTAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB All Market Real Return Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/AMTAX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AMTAX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$62 |
1.13%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 62
|
|
| Expense Ratio, Percent |
1.13%
|
[3] |
| AssetsNet |
$ 804,626,900
|
|
| Holdings Count | Holding |
389
|
|
| Advisory Fees Paid, Amount |
$ 2,646,876
|
|
| InvestmentCompanyPortfolioTurnover |
47.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$804,626,900 |
# of Portfolio Holdings |
389 |
Portfolio Turnover Rate |
47% |
Total Advisory Fees Paid (Net) |
$2,646,876 | |
|
| Holdings [Text Block] |
Portfolio BreakdownFootnote Reference*
Table Summary
Real Estate Stocks |
36.0% |
Commodity Related Derivatives |
31.0% |
Commodity Related Stocks |
17.0% |
Inflation Sensitive Stocks |
16.0% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Portfolio breakdown is expressed as an approximate percentage of the Fund's net assets inclusive of derivative exposure based on the Adviser's internal classification guidelines. | Security Type Breakdown (% of Net Assets)
Table Summary
Common Stocks |
79.7% |
Investment Companies |
1.8% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
49.9% |
Japan |
5.3% |
United Kingdom |
4.0% |
Australia |
3.9% |
Canada |
3.0% |
France |
2.2% |
Hong Kong |
1.5% |
China |
1.4% |
Switzerland |
1.2% |
Singapore |
1.2% |
Germany |
1.1% |
Spain |
1.1% |
Italy |
0.8% |
Belgium |
0.7% |
Others |
4.2% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | |
|
| Largest Holdings [Text Block] |
Table Summary
Company |
U.S. $ Value |
% of Net Assets |
Welltower, Inc. |
$24,625,274 |
3.1% |
Prologis, Inc. |
$22,305,235 |
2.8% |
Equinix, Inc. |
$17,069,732 |
2.1% |
Digital Realty Trust, Inc. |
$14,531,780 |
1.8% |
Exxon Mobil Corp. |
$12,327,572 |
1.5% |
Simon Property Group, Inc. |
$12,323,233 |
1.5% |
iShares Global Energy ETF |
$11,988,614 |
1.5% |
Shell PLC |
$11,149,861 |
1.4% |
Extra Space Storage, Inc. |
$10,567,291 |
1.3% |
NVIDIA Corp. |
$10,081,478 |
1.3% |
Total |
$146,970,070 |
18.3% | |
|
| Material Fund Change [Text Block] |
|
|
| C000085497 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB All Market Real Return Portfolio
|
|
| Class Name |
Class C
|
|
| Trading Symbol |
ACMTX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB All Market Real Return Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/ACMTX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ACMTX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$103 |
1.89%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 103
|
|
| Expense Ratio, Percent |
1.89%
|
[4] |
| AssetsNet |
$ 804,626,900
|
|
| Holdings Count | Holding |
389
|
|
| Advisory Fees Paid, Amount |
$ 2,646,876
|
|
| InvestmentCompanyPortfolioTurnover |
47.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$804,626,900 |
# of Portfolio Holdings |
389 |
Portfolio Turnover Rate |
47% |
Total Advisory Fees Paid (Net) |
$2,646,876 | |
|
| Holdings [Text Block] |
Portfolio BreakdownFootnote Reference*
Table Summary
Real Estate Stocks |
36.0% |
Commodity Related Derivatives |
31.0% |
Commodity Related Stocks |
17.0% |
Inflation Sensitive Stocks |
16.0% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Portfolio breakdown is expressed as an approximate percentage of the Fund's net assets inclusive of derivative exposure based on the Adviser's internal classification guidelines. | Security Type Breakdown (% of Net Assets)
Table Summary
Common Stocks |
79.7% |
Investment Companies |
1.8% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
49.9% |
Japan |
5.3% |
United Kingdom |
4.0% |
Australia |
3.9% |
Canada |
3.0% |
France |
2.2% |
Hong Kong |
1.5% |
China |
1.4% |
Switzerland |
1.2% |
Singapore |
1.2% |
Germany |
1.1% |
Spain |
1.1% |
Italy |
0.8% |
Belgium |
0.7% |
Others |
4.2% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | |
|
| Largest Holdings [Text Block] |
Table Summary
Company |
U.S. $ Value |
% of Net Assets |
Welltower, Inc. |
$24,625,274 |
3.1% |
Prologis, Inc. |
$22,305,235 |
2.8% |
Equinix, Inc. |
$17,069,732 |
2.1% |
Digital Realty Trust, Inc. |
$14,531,780 |
1.8% |
Exxon Mobil Corp. |
$12,327,572 |
1.5% |
Simon Property Group, Inc. |
$12,323,233 |
1.5% |
iShares Global Energy ETF |
$11,988,614 |
1.5% |
Shell PLC |
$11,149,861 |
1.4% |
Extra Space Storage, Inc. |
$10,567,291 |
1.3% |
NVIDIA Corp. |
$10,081,478 |
1.3% |
Total |
$146,970,070 |
18.3% | |
|
| Material Fund Change [Text Block] |
|
|
| C000139941 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB All Market Real Return Portfolio
|
|
| Class Name |
Class Z
|
|
| Trading Symbol |
AMTZX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB All Market Real Return Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/AMTZX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AMTZX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class Z |
$46 |
0.84%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 46
|
|
| Expense Ratio, Percent |
0.84%
|
[5] |
| AssetsNet |
$ 804,626,900
|
|
| Holdings Count | Holding |
389
|
|
| Advisory Fees Paid, Amount |
$ 2,646,876
|
|
| InvestmentCompanyPortfolioTurnover |
47.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$804,626,900 |
# of Portfolio Holdings |
389 |
Portfolio Turnover Rate |
47% |
Total Advisory Fees Paid (Net) |
$2,646,876 | |
|
| Holdings [Text Block] |
Portfolio BreakdownFootnote Reference*
Table Summary
Real Estate Stocks |
36.0% |
Commodity Related Derivatives |
31.0% |
Commodity Related Stocks |
17.0% |
Inflation Sensitive Stocks |
16.0% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Portfolio breakdown is expressed as an approximate percentage of the Fund's net assets inclusive of derivative exposure based on the Adviser's internal classification guidelines. | Security Type Breakdown (% of Net Assets)
Table Summary
Common Stocks |
79.7% |
Investment Companies |
1.8% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
49.9% |
Japan |
5.3% |
United Kingdom |
4.0% |
Australia |
3.9% |
Canada |
3.0% |
France |
2.2% |
Hong Kong |
1.5% |
China |
1.4% |
Switzerland |
1.2% |
Singapore |
1.2% |
Germany |
1.1% |
Spain |
1.1% |
Italy |
0.8% |
Belgium |
0.7% |
Others |
4.2% |
Short-Term Investments |
15.1% |
Other assets less liabilities |
3.4% |
Total |
100.0% | |
|
| Largest Holdings [Text Block] |
Table Summary
Company |
U.S. $ Value |
% of Net Assets |
Welltower, Inc. |
$24,625,274 |
3.1% |
Prologis, Inc. |
$22,305,235 |
2.8% |
Equinix, Inc. |
$17,069,732 |
2.1% |
Digital Realty Trust, Inc. |
$14,531,780 |
1.8% |
Exxon Mobil Corp. |
$12,327,572 |
1.5% |
Simon Property Group, Inc. |
$12,323,233 |
1.5% |
iShares Global Energy ETF |
$11,988,614 |
1.5% |
Shell PLC |
$11,149,861 |
1.4% |
Extra Space Storage, Inc. |
$10,567,291 |
1.3% |
NVIDIA Corp. |
$10,081,478 |
1.3% |
Total |
$146,970,070 |
18.3% | |
|
| Material Fund Change [Text Block] |
|
|
| C000082623 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Advisor Class
|
|
| Trading Symbol |
ABNYX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNYX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Advisor Class |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[6] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000085359 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class 1
|
|
| Trading Symbol |
ABNOX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNOX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class 1 |
$30 |
0.60%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 30
|
|
| Expense Ratio, Percent |
0.60%
|
[7] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000085438 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class 2
|
|
| Trading Symbol |
ABNTX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNTX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class 2 |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[8] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000082621 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class A
|
|
| Trading Symbol |
ABNAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNAX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$37 |
0.75%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 37
|
|
| Expense Ratio, Percent |
0.75%
|
[9] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000082622 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class C
|
|
| Trading Symbol |
ABNCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNCX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$75 |
1.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 75
|
|
| Expense Ratio, Percent |
1.50%
|
[10] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000085437 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class I
|
|
| Trading Symbol |
ANBIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ANBIX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[11] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000152483 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Bond Inflation Strategy
|
|
| Class Name |
Class Z
|
|
| Trading Symbol |
ABNZX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ABNZX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class Z |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[12] |
| AssetsNet |
$ 834,431,381
|
|
| Holdings Count | Holding |
308
|
|
| Advisory Fees Paid, Amount |
$ 1,415,972
|
|
| InvestmentCompanyPortfolioTurnover |
24.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$834,431,381 |
# of Portfolio Holdings |
308 |
Portfolio Turnover Rate |
24% |
Total Advisory Fees Paid (Net) |
$1,415,972 | |
|
| Holdings [Text Block] |
Security Type Breakdown (% of Net Assets)
Table Summary
Inflation-Linked Securities |
74.3% |
Corporates - Investment Grade |
10.3% |
Short-Term Investments |
5.4% |
Collateralized Mortgage Obligations |
5.3% |
Asset-Backed Securities |
4.4% |
Commercial Mortgage-Backed Securities |
0.6% |
Corporates - Non-Investment Grade |
0.6% |
Governments - Sovereign Bonds |
0.4% |
Collateralized Loan Obligations |
0.4% |
Emerging Markets - Corporate Bonds |
0.4% |
Other |
0.4% |
Other assets less liabilities |
-2.5% |
Total |
100.0% | Inflation Protection BreakdownFootnote Reference*
Table Summary
U.S. Inflation - Protected Exposure |
74.3% |
Non-Inflation Exposure |
25.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s inflation protection breakdowns is expressed as an approximate percentage of the Fund’s net assets (and may vary over time) inclusive of derivative exposure based on the Adviser’s internal classification. | |
|
| Material Fund Change [Text Block] |
|
|
| C000161781 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Income Fund
|
|
| Class Name |
Advisor Class
|
|
| Trading Symbol |
ACGYX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Income Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ACGYX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Advisor Class |
$27 |
0.54%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 27
|
|
| Expense Ratio, Percent |
0.54%
|
[13] |
| AssetsNet |
$ 2,281,181,832
|
|
| Holdings Count | Holding |
597
|
|
| Advisory Fees Paid, Amount |
$ 4,639,775
|
|
| InvestmentCompanyPortfolioTurnover |
138.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$2,281,181,832 |
# of Portfolio Holdings |
597 |
Portfolio Turnover Rate |
138% |
Total Advisory Fees Paid (Net) |
$4,639,775 | |
|
| Holdings [Text Block] |
Portfolio Breakdown (% of Net Assets)
Table Summary
Governments - Treasuries |
51.0% |
Mortgage Pass-Throughs |
27.5% |
Corporates - Investment Grade |
17.7% |
Collateralized Loan Obligations |
6.8% |
Collateralized Mortgage Obligations |
5.9% |
Corporates - Non-Investment Grade |
4.4% |
Asset-Backed Securities |
4.1% |
Agencies |
1.3% |
Emerging Markets - Corporate Bonds |
1.1% |
Others |
1.8% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
112.4% |
United Kingdom |
1.9% |
France |
1.4% |
Spain |
1.1% |
Italy |
0.7% |
Brazil |
0.5% |
Australia |
0.5% |
Germany |
0.4% |
Canada |
0.4% |
Norway |
0.3% |
South Africa |
0.2% |
Ireland |
0.2% |
Dominican Republic |
0.2% |
Romania |
0.2% |
Others |
1.2% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | |
|
| Material Fund Change [Text Block] |
This is a summary of certain changes to the Fund during the reporting period. Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus. |
|
| Material Fund Change Strategies [Text Block] |
Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus.
|
|
| Summary of Change Legend [Text Block] |
This is a summary of certain changes to the Fund during the reporting period.
|
|
| C000161779 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Income Fund
|
|
| Class Name |
Class A
|
|
| Trading Symbol |
AKGAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Income Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AKGAX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$39 |
0.79%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 39
|
|
| Expense Ratio, Percent |
0.79%
|
[14] |
| AssetsNet |
$ 2,281,181,832
|
|
| Holdings Count | Holding |
597
|
|
| Advisory Fees Paid, Amount |
$ 4,639,775
|
|
| InvestmentCompanyPortfolioTurnover |
138.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$2,281,181,832 |
# of Portfolio Holdings |
597 |
Portfolio Turnover Rate |
138% |
Total Advisory Fees Paid (Net) |
$4,639,775 | |
|
| Holdings [Text Block] |
Portfolio Breakdown (% of Net Assets)
Table Summary
Governments - Treasuries |
51.0% |
Mortgage Pass-Throughs |
27.5% |
Corporates - Investment Grade |
17.7% |
Collateralized Loan Obligations |
6.8% |
Collateralized Mortgage Obligations |
5.9% |
Corporates - Non-Investment Grade |
4.4% |
Asset-Backed Securities |
4.1% |
Agencies |
1.3% |
Emerging Markets - Corporate Bonds |
1.1% |
Others |
1.8% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
112.4% |
United Kingdom |
1.9% |
France |
1.4% |
Spain |
1.1% |
Italy |
0.7% |
Brazil |
0.5% |
Australia |
0.5% |
Germany |
0.4% |
Canada |
0.4% |
Norway |
0.3% |
South Africa |
0.2% |
Ireland |
0.2% |
Dominican Republic |
0.2% |
Romania |
0.2% |
Others |
1.2% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | |
|
| Material Fund Change [Text Block] |
This is a summary of certain changes to the Fund during the reporting period. Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus. |
|
| Material Fund Change Strategies [Text Block] |
Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus.
|
|
| Summary of Change Legend [Text Block] |
This is a summary of certain changes to the Fund during the reporting period.
|
|
| C000161780 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Income Fund
|
|
| Class Name |
Class C
|
|
| Trading Symbol |
AKGCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Income Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AKGCX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$77 |
1.54%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 77
|
|
| Expense Ratio, Percent |
1.54%
|
[15] |
| AssetsNet |
$ 2,281,181,832
|
|
| Holdings Count | Holding |
597
|
|
| Advisory Fees Paid, Amount |
$ 4,639,775
|
|
| InvestmentCompanyPortfolioTurnover |
138.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$2,281,181,832 |
# of Portfolio Holdings |
597 |
Portfolio Turnover Rate |
138% |
Total Advisory Fees Paid (Net) |
$4,639,775 | |
|
| Holdings [Text Block] |
Portfolio Breakdown (% of Net Assets)
Table Summary
Governments - Treasuries |
51.0% |
Mortgage Pass-Throughs |
27.5% |
Corporates - Investment Grade |
17.7% |
Collateralized Loan Obligations |
6.8% |
Collateralized Mortgage Obligations |
5.9% |
Corporates - Non-Investment Grade |
4.4% |
Asset-Backed Securities |
4.1% |
Agencies |
1.3% |
Emerging Markets - Corporate Bonds |
1.1% |
Others |
1.8% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
112.4% |
United Kingdom |
1.9% |
France |
1.4% |
Spain |
1.1% |
Italy |
0.7% |
Brazil |
0.5% |
Australia |
0.5% |
Germany |
0.4% |
Canada |
0.4% |
Norway |
0.3% |
South Africa |
0.2% |
Ireland |
0.2% |
Dominican Republic |
0.2% |
Romania |
0.2% |
Others |
1.2% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | |
|
| Material Fund Change [Text Block] |
This is a summary of certain changes to the Fund during the reporting period. Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus. |
|
| Material Fund Change Strategies [Text Block] |
Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus.
|
|
| Summary of Change Legend [Text Block] |
This is a summary of certain changes to the Fund during the reporting period.
|
|
| C000161785 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Income Fund
|
|
| Class Name |
Class Z
|
|
| Trading Symbol |
ACGZX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Income Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ACGZX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class Z |
$26 |
0.53%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 26
|
|
| Expense Ratio, Percent |
0.53%
|
[16] |
| AssetsNet |
$ 2,281,181,832
|
|
| Holdings Count | Holding |
597
|
|
| Advisory Fees Paid, Amount |
$ 4,639,775
|
|
| InvestmentCompanyPortfolioTurnover |
138.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$2,281,181,832 |
# of Portfolio Holdings |
597 |
Portfolio Turnover Rate |
138% |
Total Advisory Fees Paid (Net) |
$4,639,775 | |
|
| Holdings [Text Block] |
Portfolio Breakdown (% of Net Assets)
Table Summary
Governments - Treasuries |
51.0% |
Mortgage Pass-Throughs |
27.5% |
Corporates - Investment Grade |
17.7% |
Collateralized Loan Obligations |
6.8% |
Collateralized Mortgage Obligations |
5.9% |
Corporates - Non-Investment Grade |
4.4% |
Asset-Backed Securities |
4.1% |
Agencies |
1.3% |
Emerging Markets - Corporate Bonds |
1.1% |
Others |
1.8% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | Country Breakdown (% of Net Assets)
Table Summary
United States |
112.4% |
United Kingdom |
1.9% |
France |
1.4% |
Spain |
1.1% |
Italy |
0.7% |
Brazil |
0.5% |
Australia |
0.5% |
Germany |
0.4% |
Canada |
0.4% |
Norway |
0.3% |
South Africa |
0.2% |
Ireland |
0.2% |
Dominican Republic |
0.2% |
Romania |
0.2% |
Others |
1.2% |
Short-Term Investments |
0.3% |
Other assets less liabilities |
-21.9% |
Total |
100.0% | |
|
| Material Fund Change [Text Block] |
This is a summary of certain changes to the Fund during the reporting period. Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus. |
|
| Material Fund Change Strategies [Text Block] |
Effective April 6, 2026, the Fund’s non-fundamental investment policy to “normally invest at least 65% of its total assets in securities of U.S. and foreign governments, their agencies or instrumentalities and repurchase agreements relating to U.S. Government securities” was amended to “normally invest at least 65% of its total assets in investment grade debt securities of various types”. In addition, the Fund removed from its investment strategy to “invest up to 35% of its total assets in non-government fixed-income securities, including corporate debt securities, non-government mortgage-backed and other asset-backed securities, certificates of deposit and commercial paper,” and the corresponding risk disclosure, “Mortgage-Related and/or Other Asset-Backed Securities Risk,” from its prospectus.
|
|
| Summary of Change Legend [Text Block] |
This is a summary of certain changes to the Fund during the reporting period.
|
|
| C000133860 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Tax-Aware Fixed Income Opportunities Portfolio
|
|
| Class Name |
Advisor Class
|
|
| Trading Symbol |
ATTYX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Tax-Aware Fixed Income Opportunities Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/ATTYX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ATTYX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Advisor Class |
$31 |
0.62%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 31
|
|
| Expense Ratio, Percent |
0.62%
|
[17] |
| AssetsNet |
$ 1,381,989,316
|
|
| Holdings Count | Holding |
989
|
|
| Advisory Fees Paid, Amount |
$ 2,268,371
|
|
| InvestmentCompanyPortfolioTurnover |
5.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,381,989,316 |
# of Portfolio Holdings |
989 |
Portfolio Turnover Rate |
5% |
Total Advisory Fees Paid (Net) |
$2,268,371 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
4.3% |
AA |
35.5% |
A |
23.2% |
BBB |
12.2% |
BB |
4.4% |
B |
0.4% |
CCC |
0.1% |
A-1+ |
3.2% |
Not Rated |
16.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | State Breakdown (% of Net Assets)
Table Summary
California |
12.6% |
New York |
6.8% |
Florida |
6.2% |
Illinois |
5.9% |
Alabama |
5.6% |
Texas |
5.2% |
Wisconsin |
4.4% |
District of Columbia |
4.3% |
Colorado |
3.5% |
Massachusetts |
3.1% |
Pennsylvania |
3.0% |
Georgia |
3.0% |
Ohio |
3.0% |
New Hampshire |
2.9% |
Other |
33.7% |
Other assets less liabilities |
-3.2% |
Total |
100.0% | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000133863 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Tax-Aware Fixed Income Opportunities Portfolio
|
|
| Class Name |
Class A
|
|
| Trading Symbol |
ATTAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Tax-Aware Fixed Income Opportunities Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/ATTAX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ATTAX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$43 |
0.87%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 43
|
|
| Expense Ratio, Percent |
0.87%
|
[18] |
| AssetsNet |
$ 1,381,989,316
|
|
| Holdings Count | Holding |
989
|
|
| Advisory Fees Paid, Amount |
$ 2,268,371
|
|
| InvestmentCompanyPortfolioTurnover |
5.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,381,989,316 |
# of Portfolio Holdings |
989 |
Portfolio Turnover Rate |
5% |
Total Advisory Fees Paid (Net) |
$2,268,371 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
4.3% |
AA |
35.5% |
A |
23.2% |
BBB |
12.2% |
BB |
4.4% |
B |
0.4% |
CCC |
0.1% |
A-1+ |
3.2% |
Not Rated |
16.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | State Breakdown (% of Net Assets)
Table Summary
California |
12.6% |
New York |
6.8% |
Florida |
6.2% |
Illinois |
5.9% |
Alabama |
5.6% |
Texas |
5.2% |
Wisconsin |
4.4% |
District of Columbia |
4.3% |
Colorado |
3.5% |
Massachusetts |
3.1% |
Pennsylvania |
3.0% |
Georgia |
3.0% |
Ohio |
3.0% |
New Hampshire |
2.9% |
Other |
33.7% |
Other assets less liabilities |
-3.2% |
Total |
100.0% | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000133864 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Tax-Aware Fixed Income Opportunities Portfolio
|
|
| Class Name |
Class C
|
|
| Trading Symbol |
ATCCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Tax-Aware Fixed Income Opportunities Portfolio (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.abfunds.com/link/AB/ATCCX-S. You can also request this information by contacting us at (800) 227 4618.
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/ATCCX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$80 |
1.62%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 80
|
|
| Expense Ratio, Percent |
1.62%
|
[19] |
| AssetsNet |
$ 1,381,989,316
|
|
| Holdings Count | Holding |
989
|
|
| Advisory Fees Paid, Amount |
$ 2,268,371
|
|
| InvestmentCompanyPortfolioTurnover |
5.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,381,989,316 |
# of Portfolio Holdings |
989 |
Portfolio Turnover Rate |
5% |
Total Advisory Fees Paid (Net) |
$2,268,371 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
4.3% |
AA |
35.5% |
A |
23.2% |
BBB |
12.2% |
BB |
4.4% |
B |
0.4% |
CCC |
0.1% |
A-1+ |
3.2% |
Not Rated |
16.7% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | State Breakdown (% of Net Assets)
Table Summary
California |
12.6% |
New York |
6.8% |
Florida |
6.2% |
Illinois |
5.9% |
Alabama |
5.6% |
Texas |
5.2% |
Wisconsin |
4.4% |
District of Columbia |
4.3% |
Colorado |
3.5% |
Massachusetts |
3.1% |
Pennsylvania |
3.0% |
Georgia |
3.0% |
Ohio |
3.0% |
New Hampshire |
2.9% |
Other |
33.7% |
Other assets less liabilities |
-3.2% |
Total |
100.0% | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Portfolio’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Portfolio considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000082626 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Municipal Bond Inflation Strategy
|
|
| Class Name |
Advisor Class
|
|
| Trading Symbol |
AUNYX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Municipal Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AUNYX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Advisor Class |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[20] |
| AssetsNet |
$ 1,654,017,114
|
|
| Holdings Count | Holding |
662
|
|
| Advisory Fees Paid, Amount |
$ 3,354,047
|
|
| InvestmentCompanyPortfolioTurnover |
8.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,654,017,114 |
# of Portfolio Holdings |
662 |
Portfolio Turnover Rate |
8% |
Total Advisory Fees Paid (Net) |
$3,354,047 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
7.6% |
AA |
46.3% |
A |
26.9% |
BBB |
6.1% |
BB |
2.5% |
B |
0.2% |
A-1+ |
3.9% |
Not Rated |
6.5% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000085360 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Municipal Bond Inflation Strategy
|
|
| Class Name |
Class 1
|
|
| Trading Symbol |
AUNOX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Municipal Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AUNOX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class 1 |
$30 |
0.60%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 30
|
|
| Expense Ratio, Percent |
0.60%
|
[21] |
| AssetsNet |
$ 1,654,017,114
|
|
| Holdings Count | Holding |
662
|
|
| Advisory Fees Paid, Amount |
$ 3,354,047
|
|
| InvestmentCompanyPortfolioTurnover |
8.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,654,017,114 |
# of Portfolio Holdings |
662 |
Portfolio Turnover Rate |
8% |
Total Advisory Fees Paid (Net) |
$3,354,047 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
7.6% |
AA |
46.3% |
A |
26.9% |
BBB |
6.1% |
BB |
2.5% |
B |
0.2% |
A-1+ |
3.9% |
Not Rated |
6.5% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000085439 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Municipal Bond Inflation Strategy
|
|
| Class Name |
Class 2
|
|
| Trading Symbol |
AUNTX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Municipal Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AUNTX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class 2 |
$25 |
0.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 25
|
|
| Expense Ratio, Percent |
0.50%
|
[22] |
| AssetsNet |
$ 1,654,017,114
|
|
| Holdings Count | Holding |
662
|
|
| Advisory Fees Paid, Amount |
$ 3,354,047
|
|
| InvestmentCompanyPortfolioTurnover |
8.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,654,017,114 |
# of Portfolio Holdings |
662 |
Portfolio Turnover Rate |
8% |
Total Advisory Fees Paid (Net) |
$3,354,047 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
7.6% |
AA |
46.3% |
A |
26.9% |
BBB |
6.1% |
BB |
2.5% |
B |
0.2% |
A-1+ |
3.9% |
Not Rated |
6.5% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000082624 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Municipal Bond Inflation Strategy
|
|
| Class Name |
Class A
|
|
| Trading Symbol |
AUNAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Municipal Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AUNAX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$38 |
0.75%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 38
|
|
| Expense Ratio, Percent |
0.75%
|
[23] |
| AssetsNet |
$ 1,654,017,114
|
|
| Holdings Count | Holding |
662
|
|
| Advisory Fees Paid, Amount |
$ 3,354,047
|
|
| InvestmentCompanyPortfolioTurnover |
8.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,654,017,114 |
# of Portfolio Holdings |
662 |
Portfolio Turnover Rate |
8% |
Total Advisory Fees Paid (Net) |
$3,354,047 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
7.6% |
AA |
46.3% |
A |
26.9% |
BBB |
6.1% |
BB |
2.5% |
B |
0.2% |
A-1+ |
3.9% |
Not Rated |
6.5% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
| C000082625 |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
AB Municipal Bond Inflation Strategy
|
|
| Class Name |
Class C
|
|
| Trading Symbol |
AUNCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the AB Municipal Bond Inflation Strategy (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
Fund
|
|
| Additional Information Phone Number |
(800) 227 4618
|
|
| Additional Information Website |
https://www.abfunds.com/link/AB/AUNCX-S
|
|
| Expenses [Text Block] |
What were the Fund costs for the last six months?(Based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Cost of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$75 |
1.50%Footnote Reference* |
| Footnote |
Description |
Footnote* |
Annualized | |
|
| Expenses Paid, Amount |
$ 75
|
|
| Expense Ratio, Percent |
1.50%
|
[24] |
| AssetsNet |
$ 1,654,017,114
|
|
| Holdings Count | Holding |
662
|
|
| Advisory Fees Paid, Amount |
$ 3,354,047
|
|
| InvestmentCompanyPortfolioTurnover |
8.00%
|
|
| Additional Fund Statistics [Text Block] |
Table Summary
Net Assets |
$1,654,017,114 |
# of Portfolio Holdings |
662 |
Portfolio Turnover Rate |
8% |
Total Advisory Fees Paid (Net) |
$3,354,047 | |
|
| Holdings [Text Block] |
Credit Rating BreakdownFootnote Reference*
Table Summary
AAA |
7.6% |
AA |
46.3% |
A |
26.9% |
BBB |
6.1% |
BB |
2.5% |
B |
0.2% |
A-1+ |
3.9% |
Not Rated |
6.5% |
Total |
100.0% |
| Footnote |
Description |
Footnote* |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. | |
|
| Credit Ratings Selection [Text Block] |
The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in fixed-income securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the “Adviser”). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment.
|
|
| Material Fund Change [Text Block] |
|
|
|
|