v3.25.4
Expense Example - American Century Capital Portfolios Prospectus
Mar. 01, 2026
USD ($)
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, INVESTOR CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 113
Expense Example, with Redemption, 3 Years 353
Expense Example, with Redemption, 5 Years 612
Expense Example, with Redemption, 10 Years 1,351
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, I CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 291
Expense Example, with Redemption, 5 Years 504
Expense Example, with Redemption, 10 Years 1,120
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, Y CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 78
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 423
Expense Example, with Redemption, 10 Years 943
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, A CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 706
Expense Example, with Redemption, 3 Years 982
Expense Example, with Redemption, 5 Years 1,278
Expense Example, with Redemption, 10 Years 2,115
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, C CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 215
Expense Example, with Redemption, 3 Years 662
Expense Example, with Redemption, 5 Years 1,135
Expense Example, with Redemption, 10 Years 2,247
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, R CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 164
Expense Example, with Redemption, 3 Years 509
Expense Example, with Redemption, 5 Years 877
Expense Example, with Redemption, 10 Years 1,909
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, R5 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 291
Expense Example, with Redemption, 5 Years 504
Expense Example, with Redemption, 10 Years 1,120
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND, R6 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 78
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 423
Expense Example, with Redemption, 10 Years 943
GLOBAL REAL ESTATE FUND | GLOBAL REAL ESTATE FUND G CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 0
Expense Example, with Redemption, 3 Years 0
Expense Example, with Redemption, 5 Years 0
Expense Example, with Redemption, 10 Years 0
REAL ESTATE FUND | REAL ESTATE FUND, INVESTOR CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 369
Expense Example, with Redemption, 5 Years 639
Expense Example, with Redemption, 10 Years 1,409
REAL ESTATE FUND | REAL ESTATE FUND, I CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 98
Expense Example, with Redemption, 3 Years 306
Expense Example, with Redemption, 5 Years 532
Expense Example, with Redemption, 10 Years 1,178
REAL ESTATE FUND | REAL ESTATE FUND, Y CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 83
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 450
Expense Example, with Redemption, 10 Years 1,002
REAL ESTATE FUND | REAL ESTATE FUND, A CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 711
Expense Example, with Redemption, 3 Years 996
Expense Example, with Redemption, 5 Years 1,302
Expense Example, with Redemption, 10 Years 2,168
REAL ESTATE FUND | REAL ESTATE FUND, C CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 220
Expense Example, with Redemption, 3 Years 677
Expense Example, with Redemption, 5 Years 1,160
Expense Example, with Redemption, 10 Years 2,300
REAL ESTATE FUND | REAL ESTATE FUND, R CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 169
Expense Example, with Redemption, 3 Years 524
Expense Example, with Redemption, 5 Years 903
Expense Example, with Redemption, 10 Years 1,964
REAL ESTATE FUND | REAL ESTATE FUND, R5 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 98
Expense Example, with Redemption, 3 Years 306
Expense Example, with Redemption, 5 Years 532
Expense Example, with Redemption, 10 Years 1,178
REAL ESTATE FUND | REAL ESTATE FUND, R6 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 83
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 450
Expense Example, with Redemption, 10 Years $ 1,002