v3.26.3
Acquisitions and Dispositions - Additional Information (Detail)
$ in Millions
9 Months Ended
Sep. 30, 2026
USD ($)
Hospital
Sep. 30, 2025
USD ($)
Hospital
Business Acquisition [Line Items]    
Proceeds from sale of business $ 107 $ 177
Pretax gain (loss) before tax 22 (4)
Hospital Facility [Member]    
Business Acquisition [Line Items]    
Aggregate purchase price   $ 190
Number of hospitals purchased | Hospital   2
Proceeds from sale of business $ 26 $ 155
Number of hospitals sold | Hospital 1 1
Healthcare Entity [Member]    
Business Acquisition [Line Items]    
Aggregate purchase price $ 942 $ 171
Real Estate and Other Investments [Member]    
Business Acquisition [Line Items]    
Proceeds from sale of business $ 81 $ 22