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v3.22.2.2

Basis of Presentation and Significant Accounting Policies - Schedule of Revenues from Third Party Payers, Uninsured and Other Payers (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues | $ 14,971 | $ 15,276 | $ 44,736 | $ 43,688
Revenues ratio from third party payers | 100.00% | 100.00% | 100.00% | 100.00%
Medicare [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 2,569 | $ 2,645 | $ 7,790 | $ 7,816
Revenues from third party payers, Ratio | 17.20% | 17.30% | 17.40% | 17.90%
Managed Medicare [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 2,229 | $ 2,124 | $ 6,813 | $ 6,281
Revenues from third party payers, Ratio | 14.90% | 13.90% | 15.20% | 14.40%
Medicaid [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 797 | $ 692 | $ 1,987 | $ 1,722
Revenues from third party payers, Ratio | 5.30% | 4.50% | 4.40% | 3.90%
Managed Medicaid [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 939 | $ 813 | $ 3,003 | $ 2,369
Revenues from third party payers, Ratio | 6.30% | 5.30% | 6.70% | 5.40%
Managed Care and Insurers [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 7,184 | $ 7,998 | $ 21,480 | $ 22,300
Revenues from third party payers, Ratio | 47.90% | 52.40% | 48.10% | 51.00%
International (Managed Care and Insurers) [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 311 | $ 324 | $ 992 | $ 995
Revenues from third party payers, Ratio | 2.10% | 2.10% | 2.20% | 2.30%
Other [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues | $ 942 | $ 680 | $ 2,671 | $ 2,205
Other, Ratio | 6.30% | 4.50% | 6.00% | 5.10%

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. 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