Employee Benefit Plans - Defined Contribution Plans Contributions (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Defined Contribution Plan Disclosure [Line Items] | |||
| Defined contribution plan, employer's contributions | $ 506 | $ 495 | $ 493 |
| 401(k) Plan | |||
| Defined Contribution Plan Disclosure [Line Items] | |||
| Defined contribution plan, maximum annual contributions per employee (percentage) | 50.00% | ||
| Defined contribution plan, employer matching contribution (percentage) | 100.00% | ||
| Defined contribution plan, employer matching contribution percent of employees' gross pay (percentage) | 6.00% | ||
| Retirement Accumulation Plan | |||
| Defined Contribution Plan Disclosure [Line Items] | |||
| Defined contribution plan, employer matching contribution percent of employees' gross pay (percentage) | 3.00% | ||