Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,547		$ 5,547		$ 5,929
Accumulated Amortization	4,027		4,027		3,950
Net Carrying Amount	1,520		1,520		1,979
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,612		4,612		4,972
Accumulated Amortization	3,552		3,552		3,570
Net Carrying Amount	1,060		1,060		1,402
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	235		235		254
Accumulated Amortization	39		39		30
Net Carrying Amount	196		196		224
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	700		700		703
Accumulated Amortization	436		436		350
Net Carrying Amount	264		264		$ 353
Acquisition-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquisition-related intangible assets	$ 189	$ 188	$ 587	$ 594