v3.26.1
Shareholder Report
6 Months Ended
May 31, 2026
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, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
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, 2025 to May 31, 2026.
Additional Information [Text Block] Fund
Additional Information Phone Number (800) 227 4618
Additional Information Website https://www.abfunds.com/link/AB/CBSYX-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
$56
1.08%Footnote Reference*
Footnote Description
Footnote*
Annualized
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.08% [1]
AssetsNet $ 166,728,019
Holdings Count | Holding 18
Advisory Fees Paid, Amount $ 449,784
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Net Assets
$166,728,019
# of Portfolio Holdings
18
Portfolio Turnover Rate
4%
Total Advisory Fees Paid (Net)
$449,784
Holdings [Text Block]

Sector Breakdown (% of Net Assets)

Table Summary
Funds and Investment Trusts
34.6%
Governments - Treasuries
9.0%
Inflation-Linked Securities
7.2%
Emerging Markets - Treasuries
3.0%
Options on Equity Indices
0.3%
Financials
0.0%
Energy
0.0%
Warrants
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%

Country Breakdown (% of Net Assets)

Table Summary
United States
36.9%
United Kingdom
8.2%
Multinational
5.2%
Brazil
3.0%
Canada
0.8%
Netherlands
0.0%
Australia
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%
Largest Holdings [Text Block]

10 Top Holdings

Table Summary
Company
U.S. $ Value
% of Net Assets
Vanguard S&P 500 ETF
$31,589,156
18.9%
iShares Core MSCI Europe ETF
$13,709,448
8.2%
United Kingdom Gilt, 4.75%, due 12/07/30
$13,655,963
8.2%
iShares Core MSCI Emerging Markets ETF
$8,670,864
5.2%
U.S. Treasury Inflation Index, 0.38%, due 01/15/27
$7,668,732
4.6%
Brazil Notas do Tesouro Nacional Series F, 10.00%, due 01/01/35
$5,031,297
3.0%
U.S. Treasury Inflation Index, 0.50%, due 01/15/28
$4,323,737
2.6%
iShares MSCI Emerging Markets ex China ETF
$3,778,896
2.3%
Canadian Government Bond, 3.50%, due 12/01/57
$1,406,354
0.8%
Purchased Options - Puts, S&P 500 Index, USD 7450.00, due 07/17/26
$430,050
0.3%
Total
$90,264,497
54.1%
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, 2025 to May 31, 2026.
Additional Information [Text Block] Fund
Additional Information Phone Number (800) 227 4618
Additional Information Website https://www.abfunds.com/link/AB/CABNX-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
$69
1.33%Footnote Reference*
Footnote Description
Footnote*
Annualized
Expenses Paid, Amount $ 69
Expense Ratio, Percent 1.33% [2]
AssetsNet $ 166,728,019
Holdings Count | Holding 18
Advisory Fees Paid, Amount $ 449,784
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Net Assets
$166,728,019
# of Portfolio Holdings
18
Portfolio Turnover Rate
4%
Total Advisory Fees Paid (Net)
$449,784
Holdings [Text Block]

Sector Breakdown (% of Net Assets)

Table Summary
Funds and Investment Trusts
34.6%
Governments - Treasuries
9.0%
Inflation-Linked Securities
7.2%
Emerging Markets - Treasuries
3.0%
Options on Equity Indices
0.3%
Financials
0.0%
Energy
0.0%
Warrants
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%

Country Breakdown (% of Net Assets)

Table Summary
United States
36.9%
United Kingdom
8.2%
Multinational
5.2%
Brazil
3.0%
Canada
0.8%
Netherlands
0.0%
Australia
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%
Largest Holdings [Text Block]

10 Top Holdings

Table Summary
Company
U.S. $ Value
% of Net Assets
Vanguard S&P 500 ETF
$31,589,156
18.9%
iShares Core MSCI Europe ETF
$13,709,448
8.2%
United Kingdom Gilt, 4.75%, due 12/07/30
$13,655,963
8.2%
iShares Core MSCI Emerging Markets ETF
$8,670,864
5.2%
U.S. Treasury Inflation Index, 0.38%, due 01/15/27
$7,668,732
4.6%
Brazil Notas do Tesouro Nacional Series F, 10.00%, due 01/01/35
$5,031,297
3.0%
U.S. Treasury Inflation Index, 0.50%, due 01/15/28
$4,323,737
2.6%
iShares MSCI Emerging Markets ex China ETF
$3,778,896
2.3%
Canadian Government Bond, 3.50%, due 12/01/57
$1,406,354
0.8%
Purchased Options - Puts, S&P 500 Index, USD 7450.00, due 07/17/26
$430,050
0.3%
Total
$90,264,497
54.1%
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, 2025 to May 31, 2026.
Additional Information [Text Block] Fund
Additional Information Phone Number (800) 227 4618
Additional Information Website https://www.abfunds.com/link/AB/CBACX-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
$107
2.09%Footnote Reference*
Footnote Description
Footnote*
Annualized
Expenses Paid, Amount $ 107
Expense Ratio, Percent 2.09% [3]
AssetsNet $ 166,728,019
Holdings Count | Holding 18
Advisory Fees Paid, Amount $ 449,784
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Net Assets
$166,728,019
# of Portfolio Holdings
18
Portfolio Turnover Rate
4%
Total Advisory Fees Paid (Net)
$449,784
Holdings [Text Block]

Sector Breakdown (% of Net Assets)

Table Summary
Funds and Investment Trusts
34.6%
Governments - Treasuries
9.0%
Inflation-Linked Securities
7.2%
Emerging Markets - Treasuries
3.0%
Options on Equity Indices
0.3%
Financials
0.0%
Energy
0.0%
Warrants
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%

Country Breakdown (% of Net Assets)

Table Summary
United States
36.9%
United Kingdom
8.2%
Multinational
5.2%
Brazil
3.0%
Canada
0.8%
Netherlands
0.0%
Australia
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%
Largest Holdings [Text Block]

10 Top Holdings

Table Summary
Company
U.S. $ Value
% of Net Assets
Vanguard S&P 500 ETF
$31,589,156
18.9%
iShares Core MSCI Europe ETF
$13,709,448
8.2%
United Kingdom Gilt, 4.75%, due 12/07/30
$13,655,963
8.2%
iShares Core MSCI Emerging Markets ETF
$8,670,864
5.2%
U.S. Treasury Inflation Index, 0.38%, due 01/15/27
$7,668,732
4.6%
Brazil Notas do Tesouro Nacional Series F, 10.00%, due 01/01/35
$5,031,297
3.0%
U.S. Treasury Inflation Index, 0.50%, due 01/15/28
$4,323,737
2.6%
iShares MSCI Emerging Markets ex China ETF
$3,778,896
2.3%
Canadian Government Bond, 3.50%, due 12/01/57
$1,406,354
0.8%
Purchased Options - Puts, S&P 500 Index, USD 7450.00, due 07/17/26
$430,050
0.3%
Total
$90,264,497
54.1%
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, 2025 to May 31, 2026.
Additional Information [Text Block] Fund
Additional Information Phone Number (800) 227 4618
Additional Information Website https://www.abfunds.com/link/AB/CABIX-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
$55
1.06%Footnote Reference*
Footnote Description
Footnote*
Annualized
Expenses Paid, Amount $ 55
Expense Ratio, Percent 1.06% [4]
AssetsNet $ 166,728,019
Holdings Count | Holding 18
Advisory Fees Paid, Amount $ 449,784
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Net Assets
$166,728,019
# of Portfolio Holdings
18
Portfolio Turnover Rate
4%
Total Advisory Fees Paid (Net)
$449,784
Holdings [Text Block]

Sector Breakdown (% of Net Assets)

Table Summary
Funds and Investment Trusts
34.6%
Governments - Treasuries
9.0%
Inflation-Linked Securities
7.2%
Emerging Markets - Treasuries
3.0%
Options on Equity Indices
0.3%
Financials
0.0%
Energy
0.0%
Warrants
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%

Country Breakdown (% of Net Assets)

Table Summary
United States
36.9%
United Kingdom
8.2%
Multinational
5.2%
Brazil
3.0%
Canada
0.8%
Netherlands
0.0%
Australia
0.0%
Short-Term Investments
47.9%
Other assets less liabilities
-2.0%
Total
100.0%
Largest Holdings [Text Block]

10 Top Holdings

Table Summary
Company
U.S. $ Value
% of Net Assets
Vanguard S&P 500 ETF
$31,589,156
18.9%
iShares Core MSCI Europe ETF
$13,709,448
8.2%
United Kingdom Gilt, 4.75%, due 12/07/30
$13,655,963
8.2%
iShares Core MSCI Emerging Markets ETF
$8,670,864
5.2%
U.S. Treasury Inflation Index, 0.38%, due 01/15/27
$7,668,732
4.6%
Brazil Notas do Tesouro Nacional Series F, 10.00%, due 01/01/35
$5,031,297
3.0%
U.S. Treasury Inflation Index, 0.50%, due 01/15/28
$4,323,737
2.6%
iShares MSCI Emerging Markets ex China ETF
$3,778,896
2.3%
Canadian Government Bond, 3.50%, due 12/01/57
$1,406,354
0.8%
Purchased Options - Puts, S&P 500 Index, USD 7450.00, due 07/17/26
$430,050
0.3%
Total
$90,264,497
54.1%
Material Fund Change [Text Block]
[1] Annualized
[2] Annualized
[3] Annualized
[4] Annualized