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Intangible Assets Including Goodwill - Intangible Assets Activity (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]        
Intangible assets, increase (decrease)     $ 1,069  
Acquired intangibles     2,329  
Intangible asset amortization expense $ 699 $ 705 2,027 $ 1,910
Retirement of fully amortized intangible assets     $ 541