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Segment Information - Reconciliation (Details) - USD ($) |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 31, 2021 | Jul. 31, 2021 | Jan. 31, 2021 | Oct. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | $ (3,239,000,000) | $ (4,019,000,000) | $ (4,710,000,000)
Goodwill impairment | $ 0 | $ 0 | $ 0 | $ (2,600,000,000) | (3,271,000,000) | 0 | (2,642,000,000)
Stock-based compensation |  |  |  |  | (98,000,000) | (120,000,000) | (175,000,000)
OPERATING INCOME |  |  |  |  | 95,000,000 | 4,285,000,000 | 962,000,000
Total other expense, net |  |  |  |  | (1,086,000,000) | (1,584,000,000) | (1,744,000,000)
(Loss) income before income taxes |  |  |  |  | (991,000,000) | 2,701,000,000 | (782,000,000)
Income tax expense |  |  |  |  | 557,000,000 | 668,000,000 | 450,000,000
NET (LOSS) INCOME |  |  |  |  | (1,548,000,000) | 2,033,000,000 | (1,232,000,000)
Operating Segments |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Total segment adjusted EBITDA |  |  |  |  | 12,432,000,000 | 14,329,000,000 | 15,007,000,000
Operations and Other |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  | (3,239,000,000) | (4,019,000,000) | (4,710,000,000)
Goodwill impairment |  |  |  |  | (3,271,000,000) | 0 | (2,642,000,000)
Operations and other expenses |  |  |  |  | (5,729,000,000) | (5,905,000,000) | (6,518,000,000)
Stock-based compensation |  |  |  |  | (98,000,000) | (120,000,000) | (175,000,000)
OPERATING INCOME |  |  |  |  | 95,000,000 | 4,285,000,000 | 962,000,000
Total other expense, net |  |  |  |  | $ (1,086,000,000) | $ (1,584,000,000) | $ (1,744,000,000)

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