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Segment Reporting - Adjusted Pretax Operating Income (Loss) (Parenthetical) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Lease-Related Assets |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |
Impairment of other long-lived assets and other non-operating items | $ 4 | $ 9
Internal-use software |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |
Impairment of other long-lived assets and other non-operating items | 19 | $ 5
Loss on extinguishment of debt |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |
Impairment of other long-lived assets and other non-operating items | $ 4 |

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