v3.26.1
Debt - Long-term Notes (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Aug. 07, 2026
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]        
Debt instrument, face amount $ 7,775      
Debt $ 7,832     $ 7,848
Senior Notes        
Debt Instrument [Line Items]        
Redemption percentage 100.00%      
Junior Subordinated Debt        
Debt Instrument [Line Items]        
Period the interest payments may be deferred (in years) 5 years      
Senior Notes due 2028        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 4.125%      
Debt Instrument, Issuance Date Jan. 12, 2018      
Maturity date Jan. 12, 2028      
Debt instrument, face amount $ 1,000      
Debt $ 1,026     1,034
Senior Notes due 2030        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 6.15%      
Debt Instrument, Issuance Date Apr. 03, 2020      
Maturity date Apr. 03, 2030      
Debt instrument, face amount $ 500      
Debt $ 558     565
Senior Notes due 2031        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 3.50%      
Debt Instrument, Issuance Date Oct. 08, 2020      
Maturity date Jan. 15, 2031      
Debt instrument, face amount $ 500      
Debt $ 515     517
Senior Notes due 2033        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 6.65%      
Debt Instrument, Issuance Date Nov. 21, 2022      
Maturity date Feb. 01, 2033      
Debt instrument, face amount $ 400      
Debt $ 396     396
Senior Notes due 2034        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 5.875%      
Debt Instrument, Issuance Date Dec. 12, 2023      
Maturity date Jan. 15, 2034      
Debt instrument, face amount $ 600      
Debt $ 586     585
Senior Notes due 2051        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 3.95%      
Debt Instrument, Issuance Date May 25, 2021      
Maturity date May 25, 2051      
Debt instrument, face amount $ 500      
Debt $ 543     543
Senior Notes due 2052        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 3.45%      
Debt Instrument, Issuance Date Dec. 13, 2021      
Maturity date May 15, 2052      
Debt instrument, face amount $ 500      
Debt $ 504     504
Senior Notes due 2054        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 6.25%      
Debt Instrument, Issuance Date Mar. 22, 2024      
Maturity date Apr. 01, 2054      
Debt instrument, face amount $ 1,000      
Debt $ 983     983
Senior Notes due 2055        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 6.625%      
Debt Instrument, Issuance Date May 19, 2025      
Maturity date May 19, 2055      
Debt instrument, face amount     $ 1,000  
Debt $ 979     979
Junior Subordinated Debt Due 2054        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 6.625%      
Debt Instrument, Issuance Date Oct. 10, 2024      
Maturity date Oct. 15, 2054      
Debt instrument, face amount $ 600      
Debt $ 592     592
Junior Subordinated Debt Due 2055        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage     6.875%  
Debt Instrument, Issuance Date Jun. 27, 2025      
Maturity date     Jun. 28, 2055  
Debt instrument, face amount     $ 600  
Debt $ 592     592
Junior Subordinated Debt Due 2064        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage 7.25%      
Debt Instrument, Issuance Date Mar. 07, 2024      
Maturity date Mar. 30, 2064      
Debt instrument, face amount $ 575      
Debt $ 558     $ 558
Senior Notes due 2036 | Subsequent Event        
Debt Instrument [Line Items]        
Debt instrument, interest rate, stated percentage   6.15%    
Maturity date   Aug. 15, 2036    
Debt instrument, face amount   $ 1,000