v3.25.2
Annual Total Returns
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schwab Target 2010 Index Fund | Schwab Target 2010 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 7.36% 11.77% (13.30%) 6.99% 10.61% 14.56% (2.27%) 9.48%
Schwab Target 2015 Index Fund | Schwab Target 2015 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 7.86% 12.40% (13.61%) 7.67% 10.93% 15.00% (2.61%) 9.85%
Schwab Target 2020 Index Fund | Schwab Target 2020 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 8.29% 12.88% (13.81%) 8.06% 11.03% 16.21% (3.09%) 12.10%
Schwab Target 2025 Index Fund | Schwab Target 2025 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 8.87% 14.22% (14.80%) 10.24% 12.37% 18.89% (4.29%) 14.53%
Schwab Target 2030 Index Fund | Schwab Target 2030 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 10.69% 16.33% (15.71%) 12.58% 13.17% 20.89% (5.08%) 16.21%
Schwab Target 2035 Index Fund | Schwab Target 2035 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 12.09% 17.81% (16.38%) 14.26% 13.84% 22.38% (6.05%) 17.83%
Schwab Target 2040 Index Fund | Schwab Target 2040 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 13.20% 19.07% (16.96%) 15.68% 14.18% 23.64% (6.63%) 19.11%
Schwab Target 2045 Index Fund | Schwab Target 2045 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 14.09% 19.97% (17.39%) 17.04% 14.49% 24.81% (7.28%) 20.07%
Schwab Target 2050 Index Fund | Schwab Target 2050 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 14.60% 20.56% (17.68%) 17.80% 14.66% 25.36% (7.58%) 20.48%
Schwab Target 2055 Index Fund | Schwab Target 2055 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 14.94% 20.80% (17.83%) 18.36% 14.78% 25.79% (7.86%) 21.01%
Schwab Target 2060 Index Fund | Schwab Target 2060 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 15.14% 21.08% (17.96%) 18.85% 14.87% 26.11% (8.02%) 21.19%
Schwab Target 2065 Index Fund | Schwab Target 2065 Index Fund                
Prospectus [Line Items]                
Annual Return [Percent] 15.38% 21.16% (17.93%)