v3.26.3
Basis of Presentation and Significant Accounting Policies - Additional Information (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Hospital
Sep. 30, 2025
USD ($)
Hospital
Dec. 31, 2025
USD ($)
Cost of Revenue, Policy [Abstract]          
Corporate Office Costs $ 75 $ 80 $ 188 $ 217  
Third Party Reimbursement [Abstract]          
Amounts due to third party payors 109   109   $ 130
Amounts due from third party payors 107   107   $ 154
Net Operating Revenues, Policy [Abstract]          
Charity care services charges excluded from net operating revenues 585 419 1,448 1,061  
Value of charity care services at the Company's standard charges included in contractual allowances $ 58 $ 42 $ 143 $ 110  
Accounting for the Impairment or Disposal of Long-Lived Assets          
Number of hospitals sold | Hospital     1 4  
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true   true    
Hospitals Sold or Deemed Held For Sale          
Accounting for the Impairment or Disposal of Long-Lived Assets          
Gain (loss) on disposition of business     $ 248 $ 242  
Gain (loss) on sales of assets and asset impairment charges gross     400 288  
Amount related to several assets idled disposed or held for sale     18 15  
Adjustment for Carrying Value of Other Long-Lived Assets at Underperforming Hospitals          
Accounting for the Impairment or Disposal of Long-Lived Assets          
Impairment of long-lived assets held for sale     $ 134 $ 31  
Long-Lived Asset, Held and Used, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]     Asset, Impairment Loss Asset, Impairment Loss  
Shared Service Center          
Accounting for the Impairment or Disposal of Long-Lived Assets          
Gain (loss) on disposition of business     $ 413