v3.26.1
Intangible Assets - Schedule of Intangible Assets, Net (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 13,127 $ 13,448
Accumulated Amortization 8,887 8,985
Net Carrying Amount 4,240 4,463
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 7,547 7,547
Accumulated Amortization 5,094 4,945
Net Carrying Amount 2,453 2,602
Capitalized software    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 5,422 5,743
Accumulated Amortization 3,689 3,940
Net Carrying Amount 1,733 1,803
Patents and other    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 158 158
Accumulated Amortization 104 100
Net Carrying Amount 54 $ 58
Fully Amortized and Retired Capitalized Software    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 259