Stock-Based Compensation - Components of Stock-Based Compensation Expense (Parenthetical) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Share-Based Payment Arrangement [Abstract] | ||
| Compensation expense for accelerated vesting of previously granted stock-based compensation awards | $ 14 | $ 33 |