Common Stock Repurchase Program - Repurchases (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Capital Stock, Dividends and Common Stock Repurchase Program | |||
| Cash paid for repurchase of common stock | $ 1,003 | ||
| Authorized share repurchases | $ 2,000 | $ 2,000 | $ 3,000 |
| 10b5-1 Plan [Member] | |||
| Capital Stock, Dividends and Common Stock Repurchase Program | |||
| Shares repurchased (in shares) | 3.0 | 4.5 | |
| Cash paid for repurchase of common stock | $ 671 | $ 1,000 | |
| Weighted average final purchase price (in dollars per share) | $ 223.94 | $ 227.89 |