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Statement of Cash Flows, Supplemental Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract] |  |  |  |  |
Cash payments related to operating lease liabilities | [1] | $ 566 | $ 571 | $ 560 |
Interest paid |  | 895 | 800 | 684 |
Income taxes paid (refund) |  | 17 | 18 | 10 |
ROU assets recorded in exchange for operating lease liabilities |  | 4 | 12 | 191 |
Increase (Decrease) in accounts payable for purchases of property and equipment |  | (33) | 36 | (5) |
Share-Based Payment Arrangement, Amount Capitalized |  | 23 | 29 | 21 |
Purchase of property and equipment under capital leases and installment purchases |  | 69 | 62 | 28 |
Cash and cash equivalents |  | 119 | 105 | 156 |
Restricted cash and cash equivalents |  | 171 | 171 | 166 |
Restricted Cash, Noncurrent |  | 5 | 5 | 5 |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  | $ 295 | $ 281 | $ 327 | $ 466
[1] | Excludes the Company's contingent payments pursuant to operating leases, which are recorded as expense in the period such contingencies are resolved.

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