v3.26.1
Shareholder Report
 6 Months Ended
Apr. 30, 2026
USD ($)
holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name AMERICAN CENTURY CAPITAL PORTFOLIOS, INC.
Entity Central Index Key 0000908186
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000099278 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name Investor Class
Trading Symbol ARYVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Investor Class$581.11%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.11%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000099279 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name I Class
Trading Symbol ARYNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
I Class$480.91%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.91%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000189665 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name Y Class
Trading Symbol ARYYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Y Class$400.76%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.76%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000099280 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name A Class
Trading Symbol ARYMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
A Class$711.36%
Expenses Paid, Amount $ 71
Expense Ratio, Percent 1.36%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000099281 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name C Class
Trading Symbol ARYTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
C Class$1102.11%
Expenses Paid, Amount $ 110
Expense Ratio, Percent 2.11%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000099282 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name R Class
Trading Symbol ARYWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R Class$841.61%
Expenses Paid, Amount $ 84
Expense Ratio, Percent 1.61%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000189666 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name R5 Class
Trading Symbol ARYGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R5 Class$480.91%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.91%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000131610 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name R6 Class
Trading Symbol ARYDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R6 Class$400.76%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.76%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000236116 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Real Estate Fund
Class Name G Class
Trading Symbol ACIWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Global Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
G Class$00.00%
Expenses Paid, Amount $ 0
Expense Ratio, Percent 0.00%
Net Assets $ 813,166,025
Holdings Count | holding 63
Advisory Fees Paid, Amount $ 2,093,774
Investment Company, Portfolio Turnover 67.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Countries (as a % of net assets)
Common Stocks99.3%United States71%
Rights0.0%Australia7%
Short-Term Investments4.5%Japan5%
Other Assets and Liabilities(3.8)%Singapore4%
 United Kingdom3%
C000015882 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name Investor Class
Trading Symbol REACX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Investor Class$601.15%
Expenses Paid, Amount $ 60
Expense Ratio, Percent 1.15%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000015884 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name I Class
Trading Symbol REAIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
I Class$500.95%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.95%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000189663 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name Y Class
Trading Symbol ARYEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Y Class$420.80%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.80%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000015883 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name A Class
Trading Symbol AREEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
A Class$731.40%
Expenses Paid, Amount $ 73
Expense Ratio, Percent 1.40%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000050996 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name C Class
Trading Symbol ARYCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
C Class$1132.15%
Expenses Paid, Amount $ 113
Expense Ratio, Percent 2.15%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000050997 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name R Class
Trading Symbol AREWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R Class$871.65%
Expenses Paid, Amount $ 87
Expense Ratio, Percent 1.65%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000189664 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name R5 Class
Trading Symbol ARREX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R5 Class$500.95%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.95%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%
C000131605 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Fund
Class Name R6 Class
Trading Symbol AREDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Real Estate Fund for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021.
Additional Information Phone Number 1-800-345-2021
Additional Information Website americancentury.com/docs
Expenses [Text Block]
What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
R6 Class$420.80%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.80%
Net Assets $ 532,479,296
Holdings Count | holding 40
Advisory Fees Paid, Amount $ 2,590,206
Investment Company, Portfolio Turnover 56.00%
Holdings [Text Block]
Fund Holdings
Types of Investments in Portfolio (as a % of net assets)
Top Five Sectors (as a % of net assets)
Common Stocks99.6%Health Care22%
Short-Term Investments2.7%Data Centers18%
Other Assets and Liabilities(2.3)%Retail16%
 Industrial13%
 Telecommunications10%