Accounting Policies and Supplemental Disclosures - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| SUPPLEMENTAL CASH FLOW INFORMATION: | ||||||
| Cash paid for interest on debt, net of capitalized interest | $ 736 | $ 523 | $ 1,010 | $ 759 | $ 1,709 | $ 1,668 |
| Cash paid for operating leases | 3,489 | 3,758 | 7,804 | 7,320 | 15,522 | 13,485 |
| Cash paid for interest on finance leases | 85 | 72 | 187 | 143 | 339 | 284 |
| Cash paid for interest on financing obligations | 50 | 52 | 126 | 107 | 215 | 212 |
| Cash paid for income taxes, net of refunds | 2,655 | 4,761 | 3,978 | 5,638 | 6,635 | 11,788 |
| Assets acquired under operating leases | 7,670 | 4,621 | 13,909 | 8,942 | 24,897 | 16,702 |
| Property and equipment acquired under finance leases, net of remeasurements and modifications | 563 | 937 | 2,128 | 991 | 4,048 | 1,622 |
| Increase (decrease) in property and equipment acquired but not yet paid | $ 10,700 | $ (1,600) | $ 20,620 | $ 1,508 | $ 29,267 | $ 5,376 |