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Segment Information - Reconciliation of Adjusted EBITDA from Segment to Consolidated Statements (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Segment Reporting [Abstract] |  |
Adjusted EBITDA | $ 9,355 | $ 9,415
Adjustments | 6 | 8
Depreciation | (2,175) | (2,264)
Amortization | (1,376) | (1,513)
Interest expense | (1,002) | (1,010)
Investment and other income (loss), net | 298 | 607
Income before income taxes | $ 5,105 | $ 5,243

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