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Software - Narratives (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Computer Software      
Impairment of computer software $ 32 $ 144  
incremental computer software amortization 156 145  
Amortization expense for intangible assets with finite lives 2,170 2,383 $ 2,400
Software      
Computer Software      
Amortization expense for intangible assets with finite lives $ 1,068 $ 1,041 $ 837