v3.25.1
Goodwill and Other Intangible Assets, net (Changes in Goodwill and Net Carrying Amount of Intangible Assets) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Goodwill [Roll Forward]      
Goodwill, beginning of period $ 6,945 $ 6,791 $ 6,791
Acquisitions 0   154
Asset impairment (873) 0 0
Goodwill, end of period 6,072   6,945
Intangible Assets [Roll Forward]      
Intangible assets, net, beginning of period 12,973 13,686 13,686
Acquisitions 0   (220)
Impairment of goodwill 0   (354)
Amortization (37) $ (27) (139)
Intangible assets, net, end of period $ 12,936   $ 12,973