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v3.22.1

Segment and Geographic Information - Schedule of Geographic Distributions of Revenues, Equity in Earnings of Affiliates, Adjusted Segment EBITDA, Depreciation and Amortization and Assets (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |
Revenues | $ 14,945 | $ 13,977
Equity in earnings of affiliates | (11) | (21)
Adjusted segment EBITDA | 2,944 | 3,052
Depreciation and amortization | 732 | 697
Interest expense | 408 | 384
Gains on sales of facilities | (10) | (2)
Income before income taxes | 1,814 | 1,973
National Group [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 7,506 | 7,056
Equity in earnings of affiliates | (1) | (7)
Adjusted segment EBITDA | 1,566 | 1,705
Depreciation and amortization | 355 | 323
American Group [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 6,616 | 6,291
Equity in earnings of affiliates | (9) | (12)
Adjusted segment EBITDA | 1,486 | 1,501
Depreciation and amortization | 301 | 293
Corporate and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 823 | 630
Equity in earnings of affiliates | (1) | (2)
Adjusted segment EBITDA | (108) | (154)
Depreciation and amortization | $ 76 | $ 81

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