Investment Company, Portfolio Turnover Net Assets Schwab Monthly Income Fund – Target Payout [Member] Schwab Monthly Income Fund – Target Payout Schwab Monthly Income Fund – Flexible Payout [Member] Schwab Monthly Income Fund – Flexible Payout Schwab Monthly Income Fund – Income Payout [Member] Schwab Monthly Income Fund – Income Payout Target Payout Composite Index [Member] Bloomberg US Aggregate Bond Index [Member] StandardPoors500IndexMember Flexible Payout Composite Index [Member] Income Payout Composite Index [Member] Investment Type [Axis] Fixed Income - Floating Rate Loans [Member] Fixed Income - High-Yield Bond [Member] Fixed Income - Intermediate-Term Bond [Member] Fixed Income - Long-Term Government Bond [Member] Fixed Income - Preferred [Member] Fixed Income - Short-Term Bond [Member] International Stocks - Developed Markets [Member] Money Market Funds [Member] Real Estate - Global Real Estate [Member] U.S. Stocks - Large-Cap [Member] T. Rowe Price Institutional Floating Rate Fund, Instutional Class [Member] [Member] Schwab Global Real Estate Fund [Member] Schwab High Yield Bond ETF [Member] Schwab International Dividend Equity ETF [Member] Schwab Long-Term U.S. Treasury ETF [Member] Schwab 1-5 Year Corporate Bond ETF [Member] Schwab U.S. Aggregate Bond Index Fund [Member] Schwab U.S. Dividend Equity ETF [Member] Cohen & Steers Preferred Securities and Income Fund, Class I [Member] Schwab 5-10 Year Corporate Bond ETF [Member] Schwab Government Money Fund, Ultra Shares [Member]