v3.26.3
Segment Information - Summary of Segment Information Including Significant Segment Expenses (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Net operating revenues $ 2,757 $ 3,087 $ 8,547 $ 9,379
Salaries and benefits 1,213 1,356 3,771 4,056
Supplies 407 460 1,249 1,418
Depreciation and amortization 106 108 328 317
Impairment and (gain) loss on sale of businesses, net 14 21 (248) (242)
Loss (gain) from early extinguishment of debt 0 33 12 (105)
Equity in earnings of unconsolidated affiliates (2) (4) (8) (9)
(Benefit from) provision for income taxes (3) (173) 163 (13)
Net (loss) income (50) 171 28 516
Single Reportable Segment        
Segment Reporting [Line Items]        
Net operating revenues 2,757 3,087 8,547 9,379
Salaries and benefits 1,213 1,356 3,771 4,056
Supplies 407 460 1,249 1,418
Medical specialist fees 158 165 479 479
Other segment items 713 734 2,153 2,313
Depreciation and amortization 106 108 328 317
Interest expense 202 217 622 651
Interest income (1) (1) (2) (2)
Impairment and (gain) loss on sale of businesses, net 14 21 (248) (242)
Loss (gain) from early extinguishment of debt 0 33 12 (105)
Equity in earnings of unconsolidated affiliates (2) (4) (8) (9)
(Benefit from) provision for income taxes (3) (173) 163 (13)
Net (loss) income $ (50) $ 171 $ 28 $ 516