Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Schwab Short-Term Bond Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.78% | (5.55%) | (1.05%) | 4.47% | 4.93% | 1.31% | ||||
| Schwab Treasury Inflation Protected Securities Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 3.78% | (11.99%) | 5.83% | 10.88% | 8.38% | (1.32%) | 2.94% | 4.47% | (1.61%) | 3.48% |
| Schwab U.S. Aggregate Bond Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 5.44% | (13.09%) | (1.79%) | 7.37% | 8.63% | (0.12%) | ||||
| Schwab Tax-Free Bond Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 5.67% | (8.03%) | 0.79% | 4.61% | 6.54% | 0.87% | 4.40% | (0.36%) | 2.65% | 6.54% |
| Schwab California Tax-Free Bond Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 5.20% | (7.60%) | 0.76% | 4.08% | 6.02% | 1.14% | 4.53% | (0.54%) | 2.81% | 7.20% |
| Schwab Opportunistic Municipal Bond Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 9.23% | (12.82%) | 2.48% | 0.30% | 9.14% | 1.10% | 8.26% | 1.56% | 4.24% | |