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v3.19.3

Segment Information - Reconciliation (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |  |
Total segment adjusted EBITDA | $ 2,223 |  | $ 2,228 | $ 6,666 | $ 6,413
Depreciation and amortization | (1,235) |  | (1,285) | (3,619) | (3,858)
Impairment of goodwill | 0 | $ (6,500) | 0 | (6,506) | 0
Stock-based compensation | (38) |  | (49) | (114) | (144)
Total other expense, net | (540) |  | (565) | (1,542) | (1,609)
INCOME (LOSS) BEFORE INCOME TAXES | 410 |  | 329 | (5,115) | 802
Income tax expense | (108) |  | (57) | (377) | (123)
NET INCOME (LOSS) | 302 |  | 272 | (5,492) | 679
Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total segment adjusted EBITDA | 3,980 |  | 4,172 | 12,005 | 12,535
Segment Reconciling Items |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total segment adjusted EBITDA | (1,757) |  | (1,944) | (5,339) | (6,122)
Depreciation and amortization | (1,235) |  | (1,285) | (3,619) | (3,858)
Impairment of goodwill | 0 |  | 0 | (6,506) | 0
Other operating expenses | (1,757) |  | (1,944) | (5,339) | (6,122)
Operating income (loss) | 950 |  | 894 | (3,573) | 2,411
Total other expense, net | $ (540) |  | $ (565) | $ (1,542) | $ (1,609)

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