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Revenue Recognition - Disaggregation of Revenue by Geography (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Revenue by Geography    
Revenues $ 14,197 $ 13,187 [1]
Americas    
Revenue by Geography    
Revenues 7,056 6,477
EMEA    
Revenue by Geography    
Revenues 4,231 3,928
Asia Pacific    
Revenue by Geography    
Revenues $ 2,910 $ 2,781
[1] Reclassified to reflect discontinued operations presentation.