v3.25.3
Expense Example, No Redemption - AMERICAN HIGH INCOME TRUST
Nov. 28, 2025
USD ($)
 [1]
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 151
Expense Example, No Redemption, 3 Years 468
Expense Example, No Redemption, 5 Years 808
Expense Example, No Redemption, 10 Years 1,568
Class 529-C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 155
Expense Example, No Redemption, 3 Years 480
Expense Example, No Redemption, 5 Years 829
Expense Example, No Redemption, 10 Years $ 1,330
[1] The amounts shown in this table reflect the fund’s new management fee. If shareholders do not approve the new fee, all amounts would be lower.