Goodwill and Acquisition-Related Intangibles - Components of Acquisition Related Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,905	$ 2,000
Accumulated Amortization	1,753	1,660
Net	152	340
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,895	2,000
Accumulated Amortization	1,753	1,660
Net	$ 142	340
Developed technology | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period (Years)	8 years
Developed technology | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period (Years)	10 years
Other intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period (Years)	5 years
Gross Carrying Amount	$ 10	0
Accumulated Amortization	0	0
Net	$ 10	$ 0