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v3.21.1

Segment Information - Reconciliation (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Total adjusted EBITDA | $ 2,157 | $ 2,209
Depreciation and amortization | (1,150) | (1,160)
Total other expense, net | (355) | (547)
INCOME BEFORE INCOME TAXES | 632 | 433
Income tax expense | 157 | 119
Net income | 475 | 314
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total adjusted EBITDA | 3,666 | 3,790
Operations and Other |  |
Segment Reporting Information [Line Items] |  |
Total adjusted EBITDA | (1,509) | (1,581)
Depreciation and amortization | (1,150) | (1,160)
Other operating expenses | (1,509) | (1,581)
Stock-based compensation | (20) | (69)
Operating income | 987 | 980
Total other expense, net | $ (355) | $ (547)

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