v3.26.1
Debt - Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Carrying value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total debt $ 32,248 $ 32,003
Estimated fair value(a)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total debt 31,978 31,966
Estimated fair value(a) | Capital Trust I | Trust I preferred securities, 4.75%, due March 2028(c)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Convertible debt $ 217 $ 217