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Performance Management
Oct. 31, 2024
American Funds 2070 Target Date Retirement Fund | American Funds 2070 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

Because the fund has been in operation for less than one full calendar year, information regarding investment results is not available as of the date of this prospectus.

Performance One Year or Less [Text] Because the fund has been in operation for less than one full calendar year, information regarding investment results is not available as of the date of this prospectus.
American Funds 2065 Target Date Retirement Fund | American Funds 2065 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 19.33% (quarter ended June 30, 2020)

 

Lowest -15.20% (quarter ended June 30, 2022)

 

The fund's total return for the nine months ended September 30, 2024, was 16.60%.
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 16.60%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 19.33%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (15.20%)
Lowest Quarterly Return, Date Jun. 30, 2022
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2065+ Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
         
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date   1 year Lifetime
R-6 – Before taxes 3/27/2020   21.55% 14.87%
A – Before taxes 3/27/2020   14.21 12.66
– After taxes on distributions   13.78 12.17
– After taxes on distributions and sale of fund shares   8.77 9.98
         
Share classes (before taxes) Inception date   1 year Lifetime
C 3/27/2020   19.21% 13.67%
F-1 3/27/2020   21.16 14.50
F-2 3/27/2020   21.41 14.78
F-3 3/27/2020   21.55 14.87
R-1 3/27/2020   20.29 13.95
R-2 3/27/2020   20.31 13.62
R-2E 3/27/2020   20.66 13.99
R-3 3/27/2020   20.82 14.14
R-4 3/27/2020   21.17 14.49
R-5E 3/27/2020   21.48 14.71
R-5 3/27/2020   21.53 14.82
       
Indexes*   1 year Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)   26.29% 20.12%
S&P Target Date 2065+ Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)   19.84 15.79
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)   5.53 –1.45

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2065+ Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2060 Target Date Retirement Fund | American Funds 2060 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 19.13% (quarter ended June 30, 2020)

 

Lowest -17.53% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 16.60%.
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 16.60%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 19.13%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (17.53%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2060 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
         
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years Lifetime
R-6 – Before taxes 3/27/2015 21.61% 11.32% 8.88%
A – Before taxes 3/27/2015 14.14 9.61 7.78
– After taxes on distributions 13.61 8.74 7.07
– After taxes on distributions and sale of fund shares 8.81 7.55 6.18
         
Share classes (before taxes) Inception date 1 year 5 years Lifetime
C 3/27/2015 19.35% 10.13% 7.77%
F-1 3/27/2015 21.14 10.92 8.51
F-2 3/27/2015 21.50 11.22 8.78
F-3 1/27/2017 21.56 11.33 9.77
R-1 3/27/2015 20.27 10.12 7.77
R-2 3/27/2015 20.28 10.11 7.71
R-2E 3/27/2015 20.61 10.43 8.08
R-3 3/27/2015 20.75 10.60 8.17
R-4 3/27/2015 21.20 10.93 8.51
R-5E 11/20/2015 21.38 11.14 9.40
R-5 3/27/2015 21.50 11.25 8.82
       
Indexes* 1 year 5 years Lifetime
(from Class R-6
inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.11%
S&P Target Date 2060 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 19.74 11.04 8.19
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.22

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2060 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2055 Target Date Retirement Fund | American Funds 2055 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 19.21% (quarter ended June 30, 2020)

 

Lowest -17.59% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 16.57%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 16.57%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 19.21%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (17.59%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2055 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 2/1/2010 21.40% 11.35% 8.73% 10.21%
A – Before taxes 2/1/2010 14.09 9.68 7.74 9.39
– After taxes on distributions 13.54 8.69 6.85 N/A
– After taxes on distributions and sale of fund shares 8.80 7.60 6.12 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 19.10% 10.16% N/A 7.77%
F-1 2/21/2014 20.99 10.94 N/A 8.41
F-2 2/21/2014 21.29 11.25 N/A 8.68
F-3 1/27/2017 21.39 11.35 N/A 9.80
R-1 2/1/2010 20.09 10.12 7.53% 8.99
R-2 2/1/2010 20.09 10.13 7.56 9.04
R-2E 8/29/2014 20.44 10.46 N/A 7.79
R-3 2/1/2010 20.61 10.62 8.03 9.49
R-4 2/1/2010 21.01 10.96 8.36 9.83
R-5E 11/20/2015 21.26 11.18 N/A 9.43
R-5 2/1/2010 21.32 11.29 8.68 10.16
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 13.40%
S&P Target Date 2055 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 19.62 10.98 7.99 9.60
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.37

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2055 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2050 Target Date Retirement Fund | American Funds 2050 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 19.23% (quarter ended June 30, 2020)

 

Lowest -17.62% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 16.43%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 16.43%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 19.23%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (17.62%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2050 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 20.83% 11.41% 8.77% 11.26%
A – Before taxes 2/1/2007 13.39 9.72 7.78 7.01
– After taxes on distributions 12.79 8.68 6.81 N/A
– After taxes on distributions and sale of fund shares 8.39 7.62 6.12 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 18.45% 10.21% N/A 7.80%
F-1 2/21/2014 20.33 11.01 N/A 8.44
F-2 2/21/2014 20.69 11.32 N/A 8.72
F-3 1/27/2017 20.80 11.40 N/A 9.84
R-1 2/1/2007 19.41 10.16 7.55% 6.55
R-2 2/1/2007 19.42 10.18 7.60 6.59
R-2E 8/29/2014 19.82 10.52 N/A 7.80
R-3 2/1/2007 20.04 10.68 8.06 7.03
R-4 2/1/2007 20.37 11.02 8.39 7.37
R-5E 11/20/2015 20.55 11.24 N/A 9.46
R-5 2/1/2007 20.68 11.35 8.72 7.69
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2050 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 19.58 10.92 7.92 10.54
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2050 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2045 Target Date Retirement Fund | American Funds 2045 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 18.82% (quarter ended June 30, 2020)

 

Lowest -17.31% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 16.31%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 16.31%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 18.82%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (17.31%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2045 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 20.15% 11.35% 8.73% 11.22%
A – Before taxes 2/1/2007 12.84 9.70 7.73 6.99
– After taxes on distributions 12.20 8.65 6.77 N/A
– After taxes on distributions and sale of fund shares 8.07 7.60 6.09 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 17.80% 10.16% N/A 7.75%
F-1 2/21/2014 19.66 10.94 N/A 8.39
F-2 2/21/2014 20.00 11.26 N/A 8.67
F-3 1/27/2017 20.13 11.36 N/A 9.79
R-1 2/1/2007 18.80 10.13 7.52% 6.53
R-2 2/1/2007 18.73 10.14 7.55 6.56
R-2E 8/29/2014 19.11 10.46 N/A 7.76
R-3 2/1/2007 19.38 10.64 8.02 7.01
R-4 2/1/2007 19.70 10.96 8.34 7.34
R-5E 11/20/2015 19.96 11.20 N/A 9.41
R-5 2/1/2007 20.06 11.30 8.67 7.67
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2045 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 19.14 10.68 7.76 10.37
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2045 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2040 Target Date Retirement Fund | American Funds 2040 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 18.44% (quarter ended June 30, 2020)

 

Lowest -17.02% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 15.82%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 15.82%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 18.44%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (17.02%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2040 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/27/2009 19.33% 11.17% 8.58% 10.55%
A – Before taxes 2/1/2007 12.12 9.51 7.59 6.91
– After taxes on distributions 11.44 8.45 6.59 N/A
– After taxes on distributions and sale of fund shares 7.62 7.44 5.96 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 17.10% 9.98% N/A 7.61%
F-1 2/21/2014 18.94 10.78 N/A 8.24
F-2 2/21/2014 19.24 11.08 N/A 8.53
F-3 1/27/2017 19.35 11.18 N/A 9.63
R-1 2/1/2007 18.06 9.95 7.38% 6.45
R-2 2/1/2007 18.07 9.96 7.41 6.48
R-2E 8/29/2014 18.44 10.28 N/A 7.60
R-3 2/1/2007 18.59 10.45 7.88 6.92
R-4 2/1/2007 18.98 10.78 8.21 7.26
R-5E 11/20/2015 19.24 11.01 N/A 9.26
R-5 2/1/2007 19.31 11.13 8.53 7.58
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 13.78%
S&P Target Date 2040 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 18.16 10.22 7.49 9.47
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.61

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2040 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2035 Target Date Retirement Fund | American Funds 2035 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 17.15% (quarter ended June 30, 2020)

 

Lowest -15.67% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 14.16%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 14.16%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 17.15%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (15.67%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2035 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 16.90% 10.39% 8.15% 10.77%
A – Before taxes 2/1/2007 9.82 8.72 7.15 6.62
– After taxes on distributions 9.07 7.64 6.14 N/A
– After taxes on distributions and sale of fund shares 6.20 6.77 5.58 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 14.69% 9.21% N/A 7.17%
F-1 2/21/2014 16.46 9.98 N/A 7.80
F-2 2/21/2014 16.84 10.31 N/A 8.09
F-3 1/27/2017 16.90 10.39 N/A 9.04
R-1 2/1/2007 15.67 9.17 6.95% 6.17
R-2 2/1/2007 15.64 9.18 6.98 6.20
R-2E 8/29/2014 15.96 9.51 N/A 7.15
R-3 2/1/2007 16.18 9.68 7.45 6.64
R-4 2/1/2007 16.46 10.01 7.77 6.98
R-5E 11/20/2015 16.75 10.23 N/A 8.72
R-5 2/1/2007 16.83 10.33 8.09 7.30
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2035 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 16.63 9.44 7.04 9.62
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2035 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2030 Target Date Retirement Fund | American Funds 2030 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 13.83% (quarter ended June 30, 2020)

 

Lowest -12.56% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 12.58%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 12.58%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 13.83%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (12.56%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2030 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 14.52% 8.90% 7.25% 10.11%
A – Before taxes 2/1/2007 7.49 7.26 6.25 6.09
– After taxes on distributions 6.67 6.16 5.23 N/A
– After taxes on distributions and sale of fund shares 4.77 5.57 4.82 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 12.28% 7.73% N/A 6.26%
F-1 2/21/2014 14.03 8.50 N/A 6.89
F-2 2/21/2014 14.36 8.81 N/A 7.18
F-3 1/27/2017 14.50 8.90 N/A 7.85
R-1 2/1/2007 13.21 7.71 6.06% 5.65
R-2 2/1/2007 13.19 7.71 6.09 5.67
R-2E 8/29/2014 13.57 8.04 N/A 6.19
R-3 2/1/2007 13.70 8.20 6.55 6.12
R-4 2/1/2007 14.10 8.52 6.88 6.45
R-5E 11/20/2015 14.26 8.74 N/A 7.63
R-5 2/1/2007 14.38 8.85 7.20 6.77
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2030 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 14.80 8.42 6.44 8.99
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or
U.S. federal income taxes)		 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2030 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2025 Target Date Retirement Fund | American Funds 2025 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 12.07% (quarter ended June 30, 2020)

 

Lowest -10.26% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 11.40%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 11.40%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 12.07%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (10.26%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2025 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 11.95% 7.84% 6.41% 9.30%
A – Before taxes 2/1/2007 5.15 6.19 5.42 5.44
– After taxes on distributions 4.20 5.08 4.40 N/A
– After taxes on distributions and sale of fund shares 3.37 4.68 4.12 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 9.81% 6.68% N/A 5.43%
F-1 2/21/2014 11.63 7.44 N/A 6.05
F-2 2/21/2014 11.93 7.75 N/A 6.34
F-3 1/27/2017 12.00 7.84 N/A 6.88
R-1 2/1/2007 10.76 6.65 5.23% 5.00
R-2 2/1/2007 10.78 6.67 5.27 5.03
R-2E 8/29/2014 11.15 6.98 N/A 5.35
R-3 2/1/2007 11.28 7.13 5.72 5.47
R-4 2/1/2007 11.57 7.46 6.05 5.80
R-5E 11/20/2015 11.81 7.67 N/A 6.72
R-5 2/1/2007 11.92 7.78 6.36 6.12
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2025 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 12.99 7.42 5.85 8.31
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2025 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2020 Target Date Retirement Fund | American Funds 2020 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 9.79% (quarter ended June 30, 2020)

 

Lowest -8.85% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 11.05%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 11.05%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 9.79%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (8.85%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2020 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 10.46% 6.89% 5.78% 8.32%
A – Before taxes 2/1/2007 3.75 5.28 4.80 4.79
– After taxes on distributions 2.71 4.07 3.76 N/A
– After taxes on distributions and sale of fund shares 2.51 3.90 3.58 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 8.25% 5.75% N/A 4.79%
F-1 2/21/2014 10.03 6.50 N/A 5.41
F-2 2/21/2014 10.34 6.79 N/A 5.69
F-3 1/27/2017 10.51 6.90 N/A 6.05
R-1 2/1/2007 9.28 5.71 4.61% 4.36
R-2 2/1/2007 9.21 5.72 4.63 4.39
R-2E 8/29/2014 9.62 6.03 N/A 4.69
R-3 2/1/2007 9.78 6.19 5.09 4.83
R-4 2/1/2007 10.04 6.51 5.40 5.15
R-5E 11/20/2015 10.30 6.74 N/A 5.96
R-5 2/1/2007 10.36 6.82 5.73 5.47
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2020 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 12.32 6.47 5.28 7.58
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2020 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2015 Target Date Retirement Fund | American Funds 2015 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 9.03% (quarter ended June 30, 2020)

 

Lowest -8.67% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 10.49%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 10.49%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 9.03%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (8.67%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2015 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 9.57% 6.51% 5.39% 7.69%
A – Before taxes 2/1/2007 2.93 4.89 4.41 4.50
– After taxes on distributions 1.82 3.73 3.33 N/A
– After taxes on distributions and sale of fund shares 2.05 3.58 3.23 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 7.39% 5.36% N/A 4.40%
F-1 2/21/2014 9.17 6.13 N/A 5.01
F-2 2/21/2014 9.52 6.43 N/A 5.30
F-3 1/27/2017 9.59 6.50 N/A 5.60
R-1 2/1/2007 8.37 5.33 4.22% 4.07
R-2 2/1/2007 8.31 5.33 4.25 4.11
R-2E 8/29/2014 8.77 5.67 N/A 4.30
R-3 2/1/2007 8.93 5.81 4.70 4.54
R-4 2/1/2007 9.20 6.15 5.03 4.87
R-5E 11/20/2015 9.37 6.35 N/A 5.60
R-5 2/1/2007 9.46 6.46 5.34 5.18
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2015 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 11.38 6.10 4.94 6.95
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2015 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com
American Funds 2010 Target Date Retirement Fund | American Funds 2010 Target Date Retirement Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Investment results
Performance Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. Past investment results are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.com.
Performance Past Does Not Indicate Future [Text] Past investment results are not predictive of future investment results.
Performance Information Illustrates Variability of Returns [Text] The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results.
Bar Chart Narrative [Text Block]

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with a broad measure of securities market results and other applicable measures of market results. 
Bar Chart Does Not Reflect Sales Loads [Text] (Class R shares are not subject to sales charges.)
Bar Chart [Heading] Calendar year total returns for Class R-6 shares (Class R shares are not subject to sales charges.)
Bar Chart [Table]

Bar Chart Closing [Text Block]

Highest/Lowest quarterly results during this period were:

 

Highest 8.31% (quarter ended June 30, 2020)

 

Lowest -7.75% (quarter ended March 31, 2020)

 

The fund's total return for the nine months ended September 30, 2024, was 10.15%.

 
Year to Date Return, Label [Optional Text] The fund's total return for the nine months ended
Bar Chart, Year to Date Return 10.15%
Bar Chart, Year to Date Return, Date Sep. 30, 2024
Highest Quarterly Return, Label [Optional Text] Highest
Highest Quarterly Return 8.31%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] Lowest
Lowest Quarterly Return (7.75%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Market Index Changed Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2010 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance [Table]
           
Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Share class Inception date 1 year 5 years 10 years Lifetime
R-6 – Before taxes 7/13/2009 8.67% 6.07% 5.10% 7.23%
A – Before taxes 2/1/2007 2.19 4.49 4.13 4.21
– After taxes on distributions 1.07 3.43 3.12 N/A
– After taxes on distributions and sale of fund shares 1.60 3.26 3.01 N/A
           
Share classes (before taxes) Inception date 1 year 5 years 10 years Lifetime
C 2/21/2014 6.53% 4.94% N/A 4.10%
F-1 2/21/2014 8.26 5.70 N/A 4.70
F-2 2/21/2014 8.62 5.98 N/A 4.99
F-3 1/27/2017 8.70 6.09 N/A 5.24
R-1 2/1/2007 7.58 4.94 3.94% 3.78
R-2 2/1/2007 7.53 4.91 3.97 3.81
R-2E 8/29/2014 7.85 5.23 N/A 3.98
R-3 2/1/2007 8.00 5.39 4.41 4.24
R-4 2/1/2007 8.32 5.69 4.73 4.57
R-5E 11/20/2015 8.56 5.93 N/A 5.27
R-5 2/1/2007 8.68 6.03 5.05 4.88
         
Indexes* 1 year 5 years 10 years Lifetime
(from Class R-6 inception)
S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 26.29% 15.69% 12.03% 14.42%
S&P Target Date 2010 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 10.79 5.61 4.50 6.18
Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 5.53 1.10 1.81 2.56

* Effective July 24, 2024, the fund’s primary benchmark changed from the S&P Target Date 2010 Index (the “Previous Primary Benchmark”) to the S&P 500 Index, a broad-based index that represents the overall applicable securities market, as required by the U.S. Securities and Exchange Commission (“SEC”). The Previous Primary Benchmark provides a means to compare the fund’s results to a benchmark that the investment adviser believes is more representative of the fund’s investment universe. There is no change in the fund’s investment strategies as a result of the benchmark change.
Average Annual Return, Caption [Optional Text] Average annual total returns For the periods ended December 31, 2023 (with maximum sales charge for Class A):
Performance Table One Class of after Tax Shown [Text] After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block]

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (IRA).
Performance Availability Website Address [Text] capitalgroup.com