| Form N-CSR Cover | 6 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | AB GLOBAL RISK ALLOCATION FUND, INC. |
| Entity Central Index Key | 0000069752 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 6 Months Ended |
| May 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | AB GLOBAL RISK ALLOCATION FUND, INC. |
| Entity Central Index Key | 0000069752 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| C000027570 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Advisor Class |
| Trading Symbol | CBSYX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the AB Global Risk Allocation Fund (the Fund) for the period of December 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CBSYX-S |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CBSYX-S</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">https://www.abfunds.com/link/AB/CBSYX-S</span> |
| Expenses [Text Block] | What were the Fund costs for last six months? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Advisor Class $58 1.12% |
| Expenses Paid, Amount | $ 58 |
| Expense Ratio, Percent | 1.12% |
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p>" id="sjs-B23"><p style="line-height: 15.6px; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; text-align: left; height: 15.5938px; max-height: none; min-height: 0px;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p> |
| Line Graph [Table Text Block] | Advisor Class MSCI World Index Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 05/14 $10,000 $10,000 $10,000 11/14 $10,126 $10,045 $10,022 11/15 $9,897 $9,972 $9,825 11/16 $10,235 $10,287 $10,149 11/17 $11,517 $12,720 $11,829 11/18 $11,105 $12,737 $11,718 11/19 $12,023 $14,588 $13,171 11/20 $13,187 $16,706 $14,844 11/21 $14,991 $20,345 $16,509 11/22 $14,318 $18,136 $14,353 11/23 $14,183 $20,490 $15,588 05/24 $15,151 $23,963 $17,002 |
| Average Annual Return [Table Text Block] | 6 Months 1 Year 5 Years 10 Years Advisor Class (without sales charge) 6.83% 9.08% 5.58% 4.24% Advisor Class (with sales charge) 6.83% 9.08% 5.58% 4.24% MSCI World Index 14.89% 24.92% 12.76% 9.13% Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 9.07% 14.80% 7.04% 5.45% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 175,391,926 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 533,337 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $175,391,926 # of Portfolio Holdings 454 Portfolio Turnover Rate 24% Total Advisory Fees Paid $533,337 |
| Holdings [Text Block] | Sector Allocation Value Value Inflation-Linked Securities 31.8% Short-Term Investments 20.3% Governments - Treasuries 17.4% Funds and Investment Trusts 15.1% Financials 1.9% Health Care 1.2% Industrials 1.2% Consumer Staples 1.0% Materials 0.9% Utilities 0.9% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Others 1.9% Securities Lending Collateral 0.2% Other assets less liabilities 4.7% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $30,520,576 17.4% Vanguard S&P 500 ETF $22,011,440 12.5% U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $18,417,026 10.5% U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $6,900,487 3.9% VanEck JPMorgan EM Local Currency Bond ETF $2,376,985 1.4% iShares MSCI Emerging Markets ex China ETF $2,128,060 1.2% Mexico Government International Bond, 4.13%, due 01/21/26 $1,147,585 0.7% State Street SecLending Cash Collateral $366,822 0.2% Novo Nordisk A/S - Class B $347,933 0.2% ASML Holding NV $257,371 0.2% Total $84,474,285 48.2% |
| Material Fund Change [Text Block] | |
| C000027567 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class A |
| Trading Symbol | CABNX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the AB Global Risk Allocation Fund (the Fund) for the period of December 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CABNX-S |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CABNX-S</span>" id="sjs-B44"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">https://www.abfunds.com/link/AB/CABNX-S</span> |
| Expenses [Text Block] | What were the Fund costs for last six months? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $71 1.38% |
| Expenses Paid, Amount | $ 71 |
| Expense Ratio, Percent | 1.38% |
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p>" id="sjs-B48"><p style="line-height: 15.6px; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; text-align: left; height: 15.5938px; max-height: none; min-height: 0px;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p> |
| Line Graph [Table Text Block] | Class A MSCI World Index Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 05/14 $9,575 $10,000 $10,000 11/14 $9,680 $10,045 $10,022 11/15 $9,432 $9,972 $9,825 11/16 $9,735 $10,287 $10,149 11/17 $10,923 $12,720 $11,829 11/18 $10,507 $12,737 $11,718 11/19 $11,346 $14,588 $13,171 11/20 $12,412 $16,706 $14,844 11/21 $14,081 $20,345 $16,509 11/22 $13,407 $18,136 $14,353 11/23 $13,247 $20,490 $15,588 05/24 $14,137 $23,963 $17,002 |
| Average Annual Return [Table Text Block] | 6 Months 1 Year 5 Years 10 Years Class A (without sales charge) 6.72% 8.80% 5.33% 3.97% Class A (with sales charge) 2.18% 4.15% 4.41% 3.52% MSCI World Index 14.89% 24.92% 12.76% 9.13% Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 9.07% 14.80% 7.04% 5.45% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 175,391,926 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 533,337 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $175,391,926 # of Portfolio Holdings 454 Portfolio Turnover Rate 24% Total Advisory Fees Paid $533,337 |
| Holdings [Text Block] | Sector Allocation Value Value Inflation-Linked Securities 31.8% Short-Term Investments 20.3% Governments - Treasuries 17.4% Funds and Investment Trusts 15.1% Financials 1.9% Health Care 1.2% Industrials 1.2% Consumer Staples 1.0% Materials 0.9% Utilities 0.9% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Others 1.9% Securities Lending Collateral 0.2% Other assets less liabilities 4.7% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $30,520,576 17.4% Vanguard S&P 500 ETF $22,011,440 12.5% U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $18,417,026 10.5% U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $6,900,487 3.9% VanEck JPMorgan EM Local Currency Bond ETF $2,376,985 1.4% iShares MSCI Emerging Markets ex China ETF $2,128,060 1.2% Mexico Government International Bond, 4.13%, due 01/21/26 $1,147,585 0.7% State Street SecLending Cash Collateral $366,822 0.2% Novo Nordisk A/S - Class B $347,933 0.2% ASML Holding NV $257,371 0.2% Total $84,474,285 48.2% |
| Material Fund Change [Text Block] | |
| C000027569 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class C |
| Trading Symbol | CBACX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the AB Global Risk Allocation Fund (the Fund) for the period of December 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CBACX-S |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CBACX-S</span>" id="sjs-B69"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">https://www.abfunds.com/link/AB/CBACX-S</span> |
| Expenses [Text Block] | What were the Fund costs for last six months? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $110 2.14% |
| Expenses Paid, Amount | $ 110 |
| Expense Ratio, Percent | 2.14% |
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p>" id="sjs-B73"><p style="line-height: 15.6px; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; text-align: left; height: 15.5938px; max-height: none; min-height: 0px;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p> |
| Line Graph [Table Text Block] | Class C MSCI World Index Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 05/14 $10,000 $10,000 $10,000 11/14 $10,075 $10,045 $10,022 11/15 $9,745 $9,972 $9,825 11/16 $9,981 $10,287 $10,149 11/17 $11,113 $12,720 $11,829 11/18 $10,613 $12,737 $11,718 11/19 $11,373 $14,588 $13,171 11/20 $12,348 $16,706 $14,844 11/21 $13,899 $20,345 $16,509 11/22 $13,139 $18,136 $14,353 11/23 $12,890 $20,490 $15,588 05/24 $13,698 $23,963 $17,002 |
| Average Annual Return [Table Text Block] | 6 Months 1 Year 5 Years 10 Years Class C (without sales charge) 6.26% 7.94% 4.53% 3.20% Class C (with sales charge) 5.26% 6.94% 4.53% 3.20% MSCI World Index 14.89% 24.92% 12.76% 9.13% Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 9.07% 14.80% 7.04% 5.45% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 175,391,926 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 533,337 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $175,391,926 # of Portfolio Holdings 454 Portfolio Turnover Rate 24% Total Advisory Fees Paid $533,337 |
| Holdings [Text Block] | Sector Allocation Value Value Inflation-Linked Securities 31.8% Short-Term Investments 20.3% Governments - Treasuries 17.4% Funds and Investment Trusts 15.1% Financials 1.9% Health Care 1.2% Industrials 1.2% Consumer Staples 1.0% Materials 0.9% Utilities 0.9% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Others 1.9% Securities Lending Collateral 0.2% Other assets less liabilities 4.7% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $30,520,576 17.4% Vanguard S&P 500 ETF $22,011,440 12.5% U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $18,417,026 10.5% U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $6,900,487 3.9% VanEck JPMorgan EM Local Currency Bond ETF $2,376,985 1.4% iShares MSCI Emerging Markets ex China ETF $2,128,060 1.2% Mexico Government International Bond, 4.13%, due 01/21/26 $1,147,585 0.7% State Street SecLending Cash Collateral $366,822 0.2% Novo Nordisk A/S - Class B $347,933 0.2% ASML Holding NV $257,371 0.2% Total $84,474,285 48.2% |
| Material Fund Change [Text Block] | |
| C000027573 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Global Risk Allocation Fund |
| Class Name | Class I |
| Trading Symbol | CABIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the AB Global Risk Allocation Fund (the Fund) for the period of December 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CABIX-S |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CABIX-S</span>" id="sjs-B94"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">https://www.abfunds.com/link/AB/CABIX-S</span> |
| Expenses [Text Block] | What were the Fund costs for last six months? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $57 1.10% |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.10% |
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p>" id="sjs-B98"><p style="line-height: 15.6px; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; text-align: left; height: 15.5938px; max-height: none; min-height: 0px;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;">The Funds past performance is not a good predictor of the Funds future performance.</span></p> |
| Line Graph [Table Text Block] | Class I MSCI World Index Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 05/14 $10,000 $10,000 $10,000 11/14 $10,126 $10,045 $10,022 11/15 $9,911 $9,972 $9,825 11/16 $10,277 $10,287 $10,149 11/17 $11,572 $12,720 $11,829 11/18 $11,165 $12,737 $11,718 11/19 $12,089 $14,588 $13,171 11/20 $13,263 $16,706 $14,844 11/21 $15,090 $20,345 $16,509 11/22 $14,416 $18,136 $14,353 11/23 $14,281 $20,490 $15,588 05/24 $15,263 $23,963 $17,002 |
| Average Annual Return [Table Text Block] | 6 Months 1 Year 5 Years 10 Years Class I (without sales charge) 6.88% 9.07% 5.62% 4.32% Class I (with sales charge) 6.88% 9.07% 5.62% 4.32% MSCI World Index 14.89% 24.92% 12.76% 9.13% Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index 9.07% 14.80% 7.04% 5.45% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 175,391,926 |
| Holdings Count | Holding | 454 |
| Advisory Fees Paid, Amount | $ 533,337 |
| InvestmentCompanyPortfolioTurnover | 24% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $175,391,926 # of Portfolio Holdings 454 Portfolio Turnover Rate 24% Total Advisory Fees Paid $533,337 |
| Holdings [Text Block] | Sector Allocation Value Value Inflation-Linked Securities 31.8% Short-Term Investments 20.3% Governments - Treasuries 17.4% Funds and Investment Trusts 15.1% Financials 1.9% Health Care 1.2% Industrials 1.2% Consumer Staples 1.0% Materials 0.9% Utilities 0.9% Consumer Discretionary 0.8% Governments - Sovereign Bonds 0.7% Others 1.9% Securities Lending Collateral 0.2% Other assets less liabilities 4.7% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets U.S. Treasury Inflation Index, 0.38%, due 07/15/25 $30,520,576 17.4% Vanguard S&P 500 ETF $22,011,440 12.5% U.S. Treasury Inflation Index, 0.50%, due 01/15/28 $18,417,026 10.5% U.S. Treasury Inflation Index, 0.38%, due 01/15/27 $6,900,487 3.9% VanEck JPMorgan EM Local Currency Bond ETF $2,376,985 1.4% iShares MSCI Emerging Markets ex China ETF $2,128,060 1.2% Mexico Government International Bond, 4.13%, due 01/21/26 $1,147,585 0.7% State Street SecLending Cash Collateral $366,822 0.2% Novo Nordisk A/S - Class B $347,933 0.2% ASML Holding NV $257,371 0.2% Total $84,474,285 48.2% |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 6 Months Ended | |||||||||||
| May 31, 2024 | Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2017 | Nov. 30, 2016 | Nov. 30, 2015 | Nov. 30, 2014 | May 31, 2014 | |
| C000027570 | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Advisor Class | |||||||||||
| Account Value | $ 15,151 | $ 14,183 | $ 14,318 | $ 14,991 | $ 13,187 | $ 12,023 | $ 11,105 | $ 11,517 | $ 10,235 | $ 9,897 | $ 10,126 | $ 10,000 |
| C000027567 | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class A | |||||||||||
| Account Value | $ 14,137 | 13,247 | 13,407 | 14,081 | 12,412 | 11,346 | 10,507 | 10,923 | 9,735 | 9,432 | 9,680 | 9,575 |
| C000027569 | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||
| Account Value | $ 13,698 | 12,890 | 13,139 | 13,899 | 12,348 | 11,373 | 10,613 | 11,113 | 9,981 | 9,745 | 10,075 | 10,000 |
| C000027573 | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||
| Account Value | $ 15,263 | 14,281 | 14,416 | 15,090 | 13,263 | 12,089 | 11,165 | 11,572 | 10,277 | 9,911 | 10,126 | 10,000 |
| AllianceBernstein Index: MSCI World Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||
| Account Value | $ 23,963 | 20,490 | 18,136 | 20,345 | 16,706 | 14,588 | 12,737 | 12,720 | 10,287 | 9,972 | 10,045 | 10,000 |
| AllianceBernstein Index: MSCI World Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||
| Account Value | $ 23,963 | 20,490 | 18,136 | 20,345 | 16,706 | 14,588 | 12,737 | 12,720 | 10,287 | 9,972 | 10,045 | 10,000 |
| AllianceBernstein Index: MSCI World Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||
| Account Value | $ 23,963 | 20,490 | 18,136 | 20,345 | 16,706 | 14,588 | 12,737 | 12,720 | 10,287 | 9,972 | 10,045 | 10,000 |
| AllianceBernstein Index: MSCI World Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||
| Account Value | $ 23,963 | 20,490 | 18,136 | 20,345 | 16,706 | 14,588 | 12,737 | 12,720 | 10,287 | 9,972 | 10,045 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value | $ 17,002 | 15,588 | 14,353 | 16,509 | 14,844 | 13,171 | 11,718 | 11,829 | 10,149 | 9,825 | 10,022 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value | $ 17,002 | 15,588 | 14,353 | 16,509 | 14,844 | 13,171 | 11,718 | 11,829 | 10,149 | 9,825 | 10,022 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value | $ 17,002 | 15,588 | 14,353 | 16,509 | 14,844 | 13,171 | 11,718 | 11,829 | 10,149 | 9,825 | 10,022 | 10,000 |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||||||||||
| Account Value | $ 17,002 | $ 15,588 | $ 14,353 | $ 16,509 | $ 14,844 | $ 13,171 | $ 11,718 | $ 11,829 | $ 10,149 | $ 9,825 | $ 10,022 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 6 Months Ended | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| May 31, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | |
| C000027570 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Advisor Class | |||
| C000027567 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class A | |||
| C000027569 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class C | |||
| C000027573 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class I | |||
| Without Sales Load [Member] | C000027570 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.83% | 9.08% | 5.58% | 4.24% |
| Without Sales Load [Member] | C000027567 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.72% | 8.80% | 5.33% | 3.97% |
| Without Sales Load [Member] | C000027569 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.26% | 7.94% | 4.53% | 3.20% |
| Without Sales Load [Member] | C000027573 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.88% | 9.07% | 5.62% | 4.32% |
| AllianceBernstein Index: MSCI World Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | MSCI World Index | |||
| Average Annual Return, Percent | 14.89% | 24.92% | 12.76% | 9.13% |
| AllianceBernstein Index: MSCI World Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | MSCI World Index | |||
| Average Annual Return, Percent | 14.89% | 24.92% | 12.76% | 9.13% |
| AllianceBernstein Index: MSCI World Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | MSCI World Index | |||
| Average Annual Return, Percent | 14.89% | 24.92% | 12.76% | 9.13% |
| AllianceBernstein Index: MSCI World Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | MSCI World Index | |||
| Average Annual Return, Percent | 14.89% | 24.92% | 12.76% | 9.13% |
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | |||
| AllianceBernstein Index: Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Blended Benchmark: 60% MSCI World Index / 40% Bloomberg Global Aggregate Bond Index |
| Shareholder Report, Holdings (Details) | May 31, 2024 |
| C000027570 | U.S. Treasury Inflation IndexFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027570 | Vanguard S&P 500 ETFFR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000027570 | U.S. Treasury Inflation IndexFR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000027570 | U.S. Treasury Inflation IndexFR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000027570 | VanEck JPMorgan EM Local Currency Bond ETFFR_92189H300 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027570 | iShares MSCI Emerging Markets ex China ETFFR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027570 | Mexico Government International BondFR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | State Street SecLending Cash CollateralFR_SLCOLLCASH_2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | Novo Nordisk A/SFR_BP6KMJ909 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | ASML Holding NVFR_ACI02GTQ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | CountryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000027570 | CountryShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.70% |
| C000027570 | CountryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027570 | CountryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000027570 | CountrySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027570 | CountryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027570 | CountryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | CountryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027570 | CountryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027570 | CountrySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027570 | CountryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027570 | CountrySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027570 | CountryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027570 | CountryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000027570 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.80% |
| C000027570 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.30% |
| C000027570 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027570 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000027570 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027570 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027570 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027570 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027570 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027570 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027570 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027570 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027570 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027570 | SectorSecurities Lending Collateral | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | U.S. Treasury Inflation IndexFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027567 | Vanguard S&P 500 ETFFR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000027567 | U.S. Treasury Inflation IndexFR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000027567 | U.S. Treasury Inflation IndexFR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000027567 | VanEck JPMorgan EM Local Currency Bond ETFFR_92189H300 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027567 | iShares MSCI Emerging Markets ex China ETFFR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027567 | Mexico Government International BondFR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | State Street SecLending Cash CollateralFR_SLCOLLCASH_2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | Novo Nordisk A/SFR_BP6KMJ909 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | ASML Holding NVFR_ACI02GTQ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | CountryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000027567 | CountryShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.70% |
| C000027567 | CountryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027567 | CountryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000027567 | CountrySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027567 | CountryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027567 | CountryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | CountryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027567 | CountryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027567 | CountrySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027567 | CountryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027567 | CountrySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027567 | CountryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027567 | CountryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000027567 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.80% |
| C000027567 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.30% |
| C000027567 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027567 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000027567 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027567 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027567 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027567 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027567 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027567 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027567 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027567 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027567 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027567 | SectorSecurities Lending Collateral | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | U.S. Treasury Inflation IndexFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027569 | Vanguard S&P 500 ETFFR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000027569 | U.S. Treasury Inflation IndexFR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000027569 | U.S. Treasury Inflation IndexFR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000027569 | VanEck JPMorgan EM Local Currency Bond ETFFR_92189H300 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027569 | iShares MSCI Emerging Markets ex China ETFFR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027569 | Mexico Government International BondFR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | State Street SecLending Cash CollateralFR_SLCOLLCASH_2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | Novo Nordisk A/SFR_BP6KMJ909 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | ASML Holding NVFR_ACI02GTQ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | CountryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000027569 | CountryShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.70% |
| C000027569 | CountryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027569 | CountryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000027569 | CountrySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027569 | CountryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027569 | CountryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | CountryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027569 | CountryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027569 | CountrySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027569 | CountryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027569 | CountrySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027569 | CountryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027569 | CountryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000027569 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.80% |
| C000027569 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.30% |
| C000027569 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027569 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000027569 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027569 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027569 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027569 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027569 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027569 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027569 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027569 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027569 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027569 | SectorSecurities Lending Collateral | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | U.S. Treasury Inflation IndexFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027573 | Vanguard S&P 500 ETFFR_922908363 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000027573 | U.S. Treasury Inflation IndexFR_9128283R9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000027573 | U.S. Treasury Inflation IndexFR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000027573 | VanEck JPMorgan EM Local Currency Bond ETFFR_92189H300 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000027573 | iShares MSCI Emerging Markets ex China ETFFR_46434G764 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027573 | Mexico Government International BondFR_91086QBG2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | State Street SecLending Cash CollateralFR_SLCOLLCASH_2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | Novo Nordisk A/SFR_BP6KMJ909 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | ASML Holding NVFR_ACI02GTQ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | CountryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000027573 | CountryShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.70% |
| C000027573 | CountryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027573 | CountryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000027573 | CountrySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000027573 | CountryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027573 | CountryMexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | CountryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027573 | CountryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000027573 | CountrySweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027573 | CountryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000027573 | CountrySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000027573 | CountryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000027573 | CountryNorway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000027573 | SectorInflation-Linked Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.80% |
| C000027573 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.30% |
| C000027573 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000027573 | SectorFunds and Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000027573 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027573 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027573 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000027573 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000027573 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027573 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000027573 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000027573 | SectorGovernments - Sovereign Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000027573 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000027573 | SectorSecurities Lending Collateral | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
