v3.26.1
Shareholder Report
 12 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name International Growth and Income Fund
Entity Central Index Key 0001439297
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
International Growth and Income Fund - Class A  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class A
Trading Symbol IGAAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-A. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-A
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A
$
99		0.88
%
Expenses Paid, Amount $ 99
Expense Ratio, Percent 0.88%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class A shares gained 25.17% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-A
.
What factors influenced results
During the fund's fiscal year, internati
on
al equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class A (with sales
charge)
*
17.98
%
7.52
%
9.13
%
International Growth and Income Fund — Class A (without sales
charge)
*
25.17
%
8.81
%
9.78
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class C  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class C
Trading Symbol IGICX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-C. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-C
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C
$
182		1.62
%
Expenses Paid, Amount $ 182
Expense Ratio, Percent 1.62%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class C shares gained 24.25% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-C
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class C (with sales
charge)
*
23.25
%
8.00
%
9.12
%
International Growth and Income Fund — Class C (without sales
charge)
*
24.25
%
8.00
%
9.12
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class F1  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class F-1
Trading Symbol IGIFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F1. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F1
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class F-1
$
102		0.91
%
Expenses Paid, Amount $ 102
Expense Ratio, Percent 0.91%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class F-1 shares gained 25.15% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-F1
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
F-1
*
25.15
%
8.79
%
9.76
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class F-2  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class F-2
Trading Symbol IGFFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F2
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000
investment
)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class F-2
$
72		0.64
%
Expenses Paid, Amount $ 72
Expense Ratio, Percent 0.64%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class F-2 shares gained 25.48% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-F2
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
F-2
*
25.48
%
9.09
%
10.06
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class F3  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class F-3
Trading Symbol IGAIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F3
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class F-3
$
60		0.53
%
Expenses Paid, Amount $ 60
Expense Ratio, Percent 0.53%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class F-3 shares gained 25.62% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-F3
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
Since inception
1
International Growth and Income Fund — Class
F-3
2
25.62
%
9.21
%
10.04
%
MSCI ACWI (All Country World Index) ex
USA
3
27.66
%
8.79
%
9.46
%
1
Class F-3 shares were first offered on January 27, 2017.
2
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
3
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
Performance Inception Date Jan. 27, 2017
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
 International Growth and Income Fund - Class 529-A  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class 529-A
Trading Symbol CGIAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529A. You can also request this information by contacting us at (800) 421-4225. 
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529A
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class 529-A
$
101		0.90
%
Expenses Paid, Amount $ 101
Expense Ratio, Percent 0.90%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class 529-A shares gained 25.16% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-529A
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class 529-A (with sales
charge)
*
20.78
%
8.00
%
9.35
%
International Growth and Income Fund — Class 529-A (without sales
charge)
*
25.16
%
8.77
%
9.74
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
 International Growth and Income Fund - Class 529-C  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class 529-C
Trading Symbol CIICX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529C. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529C
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class 529-C
$
187		1.67
%
Expenses Paid, Amount $ 187
Expense Ratio, Percent 1.67%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class 529-C shares gained 24.19% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-529C
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class 529-C (with sales
charge)
*
23.19
%
7.95
%
9.32
%
International Growth and Income Fund — Class 529-C (without sales
charge)
*
24.19
%
7.95
%
9.32
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
 International Growth and Income Fund - Class 529-E  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class 529-E
Trading Symbol CGIEX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529E
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class 529-E
$
126		1.12
%
Expenses Paid, Amount $ 126
Expense Ratio, Percent 1.12%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class 529-E shares gained 24.89% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-529E
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
529-E
*
24.89
%
8.56
%
9.52
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class 529-F-2  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class 529-F-2
Trading Symbol FGGGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529F2
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class 529-F-2
$
71		0.63
%
Expenses Paid, Amount $ 71
Expense Ratio, Percent 0.63%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class 529-F-2 shares gained 25.52% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-529F2
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
Since inception
1
International Growth and Income Fund — Class
529-F-2
2
25.52
%
9.10
%
13.88
%
MSCI ACWI (All Country World Index) ex
USA
3
27.66
%
8.79
%
12.90
%
1
Class 529-F-2 shares were first offered on October 30, 2020.
2
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
3
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
Performance Inception Date Oct. 30, 2020
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class 529-F-3  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class 529-F-3
Trading Symbol FGIGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529F3
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class 529-F-3
$
67		0.59
%
Expenses Paid, Amount $ 67
Expense Ratio, Percent 0.59%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class 529-F-3 shares gained 25.58% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-529F3
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
Since inception
1
International Growth and Income Fund — Class
529-F-3
2
25.58
%
9.15
%
13.93
%
MSCI ACWI (All Country World Index) ex
USA
3
27.66
%
8.79
%
12.90
%
1
Class 529-F-3 shares were first offered on October 30, 2020.
2
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
3
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
Performance Inception Date Oct. 30, 2020
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-1  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-1
Trading Symbol RIGAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R1. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R1
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class R-1
$
182		1.62
%
Expenses Paid, Amount $ 182
Expense Ratio, Percent 1.62%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-1 shares gained 24.26% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R1
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual
total
returns
1 year
5 years
10 years
International Growth and Income Fund — Class
R-1
*
24.26
%
8.01
%
8.98
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-2  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-2
Trading Symbol RIGBX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R2
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class R-2
$
182		1.62
%
Expenses Paid, Amount $ 182
Expense Ratio, Percent 1.62%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-2 shares gained 24.27% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R2
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
R-2
*
24.27
%
8.02
%
8.98
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-2E  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-2E
Trading Symbol RIIEX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R2E
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class R-2E
$
149		1.33
%
Expenses Paid, Amount $ 149
Expense Ratio, Percent 1.33%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-2E shares gained 24.64% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R2E
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
R-2E
*
24.64
%
8.34
%
9.30
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-3  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-3
Trading Symbol RGICX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R3
Expenses [Text Block]
What were the fund costs for the last year?
 
(based on a hypothetical $10,000
investment)
 
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class R-3
$
133		 1.18
%
Expenses Paid, Amount $ 133
Expense Ratio, Percent 1.18%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-3 shares gained 24.81% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R3
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year
5 years
10 years
International Growth and Income Fund — Class
R-3
*
 24.81
%
 8.50
%
 9.46
%
MSCI ACWI (All Country World Index) ex
USA
†
 27.66
%
 8.79
%
 9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings 325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate 44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-4  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-4
Trading Symbol RIGEX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R4. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R4
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-4
$
99		0.88
%
Expenses Paid, Amount $ 99
Expense Ratio, Percent 0.88%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-4 shares gained 25.21% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R4
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year5 years10 years
International Growth and Income Fund — Class
R-4
*
25.21
%
8.83
%
9.80
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-5E  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-5E
Trading Symbol RIGIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R5E
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5E
$
77		0.68
%
Expenses Paid, Amount $ 77
Expense Ratio, Percent 0.68%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-5E shares gained 25.44% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R5E
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year5 years10 years
International Growth and Income Fund — Class
R-5E
*
25.44
%
9.04
%
10.01
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-5  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-5
Trading Symbol RIGFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R5
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5
$
67		0.59
%
Expenses Paid, Amount $ 67
Expense Ratio, Percent 0.59%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-5 shares gained 25.56% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R5
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year5 years10 years
International Growth and Income Fund — Class
R-5
*
25.56
%
9.16
%
10.13
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
International Growth and Income Fund - Class R-6  
Shareholder Report [Line Items]  
Fund Name International Growth and Income Fund
Class Name Class R-6
Trading Symbol RIGGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about International Growth and Income Fund (the "fund") for the period from July 1, 2025 to June 30, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R6. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R6
Expenses [Text Block]
What were the fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-6
$
60		0.53
%
Expenses Paid, Amount $ 60
Expense Ratio, Percent 0.53%
Factors Affecting Performance [Text Block]
Management's discussion of fund performance
The fund’s Class R-6 shares gained 25.61% for the year ended June 30, 2026. That result compares with a 27.66% gain for the MSCI ACWI (All Country World Index) ex USA. For information on returns for additional periods, including the fund lifetime, please refer to
capitalgroup.com/mutual-fund-returns-R6
.
What factors influenced results
During the fund's fiscal year, international equities delivered solid returns despite volatility fueled by trade tensions and geopolitical uncertainty. Strong investment in AI supported gains in large-cap technology stocks. Energy shares also benefited from rising oil prices amid the Middle East conflict. European markets advanced on improving domestic demand and a European Central Bank interest rate cut. Emerging market stocks also rose, driven by robust semiconductor demand in South Korea and Taiwan.
Within the fund, most sectors contributed positively, with the information technology sector being particularly additive. Financials, materials and industrials sectors were also strong contributors. Geographically, companies based in Taiwan, South Korea and the U.K. contributed significantly to absolute returns.
Conversely, consumer discretionary holdings posted negative results during the period. From a country perspective, investments in India, Denmark and China detracted from the portfolio.
Performance Past Does Not Indicate Future [Text] The fund’s past performance is not a predictor of its future performance.
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average annual total returns
1 year5 years10 years
International Growth and Income Fund — Class
R-6
*
25.61
%
9.21
%
10.18
%
MSCI ACWI (All Country World Index) ex
USA
†
27.66
%
8.79
%
9.93
%
*
Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
†
Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.
No Deduction of Taxes [Text Block] The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets $ 20,706,000,000
Holdings Count | Holding 325
Advisory Fees Paid, Amount $ 89,000,000
Investment Company, Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
20,706
Total number of portfolio holdings325
Total advisory fees paid (in millions)
$
89
Portfolio turnover rate44
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart