Goodwill and Intangible Assets Intangible Asset Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Totals	$ 771		$ 810
Amortization of intangible assets	39	$ 46
Accumulated amortization	212		173
Intangible Assets		$ 137
Developed and Acquired Technology
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	161		132
Trade Names
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 51		$ 41