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Label Element Value
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
American Funds Short-Term Tax-Exempt Bond Fund®
Limited Term Tax-Exempt Bond Fund of America®
American High-Income Municipal Bond Fund®
The Tax-Exempt Fund of California®
American Funds Tax-Exempt Fund of New York®

 

Prospectus Supplement

 

May 1, 2022

(for prospectus dated October 1, 2021, as supplemented to date)

 

1. The “Annual fund operating expenses” and “Example” tables in the “Fees and expenses of the fund” summary section of the prospectus for each of the funds listed above, except American Funds Short-Term Tax-Exempt Bond Fund, are amended to read as follows. Except as indicated below, footnotes in the prospectus remain unchanged.
Risk/Return [Heading] rr_RiskReturnHeading American High-Income Municipal Bond Fund®
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

American High-Income Municipal Bond Fund
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent Restated to reflect current fees.
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption For the share class listed to the right, you would pay the following if you did not redeem your shares:
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Keep this supplement with your prospectus.
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class A  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.30%
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual fund operating expenses rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 438
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 572
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 718
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,143
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class C  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual fund operating expenses rr_ExpensesOverAssets 1.34%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 236
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 425
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 734
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,420
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 136
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 425
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 734
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,420
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class T  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual fund operating expenses rr_ExpensesOverAssets 0.59%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 309
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 434
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 571
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 969
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class F-1  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.17%
Total annual fund operating expenses rr_ExpensesOverAssets 0.66%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 211
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 368
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 822
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class F-2  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.16%
Total annual fund operating expenses rr_ExpensesOverAssets 0.40%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 41
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 128
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 224
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 505
AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | AMERICAN HIGH-INCOME MUNICIPAL BOND FUND | Class F-3  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.24% [1]
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.06%
Total annual fund operating expenses rr_ExpensesOverAssets 0.30%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 31
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 97
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 169
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 381
[1] Restated to reflect current fees.