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v3.25.2

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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues | $ 18,605 | $ 17,492 | $ 36,926 | $ 34,831
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 | $ 2,803 | $ 2,621 | $ 5,698 | $ 5,459
Revenues from third party payers, Ratio | 15.10% | 15.00% | 15.40% | 15.70%
Managed Medicare [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 3,352 | $ 2,913 | $ 6,651 | $ 5,939
Revenues from third party payers, Ratio | 18.00% | 16.70% | 18.00% | 17.00%
Medicaid [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 1,440 | $ 1,166 | $ 2,630 | $ 2,189
Revenues from third party payers, Ratio | 7.70% | 6.70% | 7.10% | 6.30%
Managed Medicaid [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 899 | $ 1,033 | $ 1,778 | $ 2,011
Revenues from third party payers, Ratio | 4.80% | 5.90% | 4.80% | 5.80%
Managed Care and Insurers [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 9,124 | $ 8,549 | $ 18,165 | $ 17,094
Revenues from third party payers, Ratio | 49.10% | 48.70% | 49.20% | 49.00%
International (Managed Care and Insurers) [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues from third party payers | $ 461 | $ 416 | $ 906 | $ 828
Revenues from third party payers, Ratio | 2.50% | 2.40% | 2.50% | 2.40%
Other [Member] |  |  |  |
Revenues From Third Party Payers [Line Items] |  |  |  |
Revenues | $ 526 | $ 794 | $ 1,098 | $ 1,311
Other, Ratio | 2.80% | 4.60% | 3.00% | 3.80%

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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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