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Goodwill and Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]    
Totals $ 928 $ 1,114
Developed and Acquired Technology    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 545 721
Totals 137  
Trade Names    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross $ 383 $ 393