Leases (Supplemental Cash Flow Information Related to Leases) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Cash Flows from Operating Activities | |||
| Operating cash flows from operating leases | $ 4,830 | $ 4,757 | $ 4,588 |
| Supplemental Lease Cash Flow Disclosures | |||
| Operating lease right-of-use assets obtained in exchange for new operating lease obligations | $ 5,517 | $ 3,762 | $ 2,693 |