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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Supplemental Cash Flow Elements [Abstract] |  |  |  |  |
Cash payments related to operating lease liabilities | [1] | $ 283 | $ 284 |  |
Interest Paid |  | 441 | 367 |  |
Income taxes paid |  | 9 | 10 |  |
ROU assets recorded in exchange for operating lease liabilities |  | (70) | 28 |  |
Increase (decrease) in accounts payable for purchases of property and equipment |  | (18) | 16 |  |
Share-Based Payment Arrangement, Amount Capitalized |  | 13 | 14 |  |
Purchase of property and equipment under capital leases and installment purchases |  | 41 | 39 |  |
Cash and cash equivalents |  | 155 |  | $ 105 |
Restricted cash and cash equivalents, current |  | 171 |  | 171 |
Cash, Cash Equivalents, Restricted Cash and Cash Equivalents |  | $ 331 | $ 488 | $ 281 | $ 327
[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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