Profit Per Share (Details) $ in Millions |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 31, 2026
shares
|
Sep. 30, 2026
USD ($)
shares
|
Jun. 30, 2026
USD ($)
shares
|
Mar. 31, 2026
USD ($)
shares
|
Sep. 30, 2025
USD ($)
shares
|
Sep. 30, 2026
USD ($)
shares
|
Sep. 30, 2025
USD ($)
shares
|
|||||||||
| Stock Repurchase | |||||||||||||||
| Common shares under SARs and stock options not included in the computation of diluted earnings per share (in shares) | shares | 100,000 | 0 | 100,000 | 400,000 | |||||||||||
| Common shares repurchased (in shares) | shares | 2,174,443 | [1] | 847,999 | [1] | 9,146,566 | [2] | 11,029,455 | [2] | |||||||
| Common shares repurchased | $ 2,148 | [1] | $ 362 | [1] | $ 7,070 | [2] | $ 3,950 | [2] | |||||||
| Cost of repurchase | 7,745 | $ 4,850 | |||||||||||||
| ASR Agreements | |||||||||||||||
| Stock Repurchase | |||||||||||||||
| Common shares repurchased (in shares) | shares | 700,000 | 800,000 | 4,800,000 | ||||||||||||
| Common shares repurchased | $ 750 | $ 3,150 | |||||||||||||
| Cost of repurchase | $ 1,000 | $ 4,500 | |||||||||||||
| Percentage of initial number of common shares repurchased under the ASR agreements | 0.75 | 0.70 | |||||||||||||
| Stock repurchase program, unsettled forward contract, reduction to common stock | $ 1,600 | ||||||||||||||
| ASR Agreements | Subsequent Event | |||||||||||||||
| Stock Repurchase | |||||||||||||||
| Common shares repurchased (in shares) | shares | 400,000 | ||||||||||||||
| |||||||||||||||