Stock-Based Compensation (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Share-Based Payment Arrangement [Abstract] | ||||
| Stock-based compensation expense | $ 81 | $ 71 | $ 227 | $ 202 |
| Unrecognized compensation expense | $ 287 | $ 287 | ||
| Term of amortization of unrecognized compensation cost over weighted-average remaining requisite service periods (in years) | 2 years | |||