v3.25.4
Investment Risks - American Century Capital Portfolios Prospectus
Mar. 01, 2026
GLOBAL REAL ESTATE FUND | Real Estate Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Real Estate Investing Risk — An investment in the fund may be subject to many of the same risks as a direct investment in real estate. These risks include changes in economic conditions, interest rates, property values, property tax increases, overbuilding and increased competition, environmental contamination, zoning and natural disasters. This is due to the fact that the value of the fund’s investments may be affected by the value of the real estate owned by the companies in which it invests. To the extent the fund invests in companies that make loans to real estate companies, the fund also may be subject to interest rate risk and credit risk.
GLOBAL REAL ESTATE FUND | REITs Risk Member  
Prospectus [Line Items]  
Risk [Text Block] REITs Risk — Investments in REITs are subject to credit risk and interest rate risk with respect to the loans made by the REITs in which the fund invests. Credit risk is the risk that the borrower will not be able to make interest and principal payments on the loan to the REIT when they are due. Interest rate risk is the risk that a change in the prevailing interest rate will cause the value of the loan portfolio held by the REIT to rise or fall. Additionally, the fund’s shareholders will indirectly bear a proportionate share of the operating expenses of a REIT in which the fund invests.
GLOBAL REAL ESTATE FUND | Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Concentration Risk — Because the fund concentrates its investments in real estate securities, it may be subject to greater risks and market fluctuations than a portfolio investing in a broader range of industries.
GLOBAL REAL ESTATE FUND | Foreign Securities Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Securities Risk — The fund invests in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
GLOBAL REAL ESTATE FUND | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk — Investing in securities of companies located in emerging market countries generally is riskier than investing in securities of companies located in foreign developed countries.
GLOBAL REAL ESTATE FUND | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk — Because the fund invests in securities denominated in foreign currencies, the fund is subject to currency risk, meaning that the fund could experience losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
GLOBAL REAL ESTATE FUND | High Portfolio Turnover Risk Member  
Prospectus [Line Items]  
Risk [Text Block] High Portfolio Turnover Risk — The fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover may result in increased transaction costs to the fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities.
GLOBAL REAL ESTATE FUND | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
GLOBAL REAL ESTATE FUND | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk — The value of the fund’s shares may fluctuate significantly in the short term.
GLOBAL REAL ESTATE FUND | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk — The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
GLOBAL REAL ESTATE FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
GLOBAL REAL ESTATE FUND | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
GLOBAL REAL ESTATE FUND | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block] Nondiversification Risk — The fund is classified as nondiversified. A nondiversified fund may invest a greater percentage of its assets in a smaller number of securities than a diversified fund. This gives the portfolio managers the flexibility to hold large positions in a smaller number of securities. If so, a price change in any one of those securities may have a greater impact on the fund’s share price than would be the case in a diversified fund and the fund may be more volatile than if it was diversified.
REAL ESTATE FUND | Real Estate Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Real Estate Investing Risk — An investment in the fund may be subject to many of the same risks as a direct investment in real estate. These risks include changes in economic conditions, interest rates, property values, property tax increases, overbuilding and increased competition, environmental contamination, zoning and natural disasters. This is due to the fact that the value of the fund’s investments may be affected by the value of the real estate owned by the companies in which it invests. To the extent the fund invests in companies that make loans to real estate companies, the fund also may be subject to interest rate risk and credit risk.
REAL ESTATE FUND | REITs Risk Member  
Prospectus [Line Items]  
Risk [Text Block] REITs Risk — Investments in REITs are subject to credit risk and interest rate risk with respect to the loans made by the REITs in which the fund invests. Credit risk is the risk that the borrower will not be able to make interest and principal payments on the loan to the REIT when they are due. Interest rate risk is the risk that a change in the prevailing interest rate will cause the value of the loan portfolio held by the REIT to rise or fall. Additionally, the fund’s shareholders will indirectly bear a proportionate share of the operating expenses of a REIT in which the fund invests.
REAL ESTATE FUND | Concentration Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Concentration Risk — Because the fund concentrates its investments in real estate securities, it may be subject to greater risks and market fluctuations than a portfolio investing in a broader range of industries.
REAL ESTATE FUND | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
REAL ESTATE FUND | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk — The value of the fund’s shares may fluctuate significantly in the short term.
REAL ESTATE FUND | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk — The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
REAL ESTATE FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
REAL ESTATE FUND | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
REAL ESTATE FUND | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block] Nondiversification Risk — The fund is classified as nondiversified. A nondiversified fund may invest a greater percentage of its assets in a smaller number of securities than a diversified fund. This gives the managers the flexibility to hold large positions in a small number of securities. If so, a price change in any one of those securities may have greater impact on the fund’s share price than would be the case in a diversified fund.