Investment Objectives and Goals - American Century ETF Trust	May 05, 2026
Avantis U.S. Core Equity ETF
Prospectus [Line Items]
Risk/Return [Heading]	Avantis® U.S. Core Equity ETF
Objective [Heading]	Investment Objective
Objective, Primary [Text Block]	The fund seeks long-term capital appreciation.
American Century Core Plus Income ETF
Prospectus [Line Items]
Risk/Return [Heading]	American Century® Core Plus Income ETF
Objective [Heading]	Investment Objective
Objective, Primary [Text Block]	The fund seeks to provide a high level of current income and total return.

Investment Objective

American Century® Core Plus Income ETF

The fund seeks to provide a high level of current income and total return.