v3.26.3
Form N-1A Cover
Jan. 01, 2026
Prospectus [Line Items]  
Document Type 497
Amendment Flag false
Registrant Name AMERICAN CENTURY ETF TRUST
Entity Central Index Key 0001710607
Entity Investment Company Type N-1A
Document Period End Date Oct. 09, 2026
Prospectus Date Jan. 01, 2026