Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,149		$ 6,149		$ 5,604
Accumulated Amortization	4,523		4,523		4,159
Net Carrying Amount	1,626		1,626		1,445
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,824		4,824		4,639
Accumulated Amortization	3,927		3,927		3,649
Net Carrying Amount	897		$ 897		990
Acquired intangible assets, weighted-average useful life			4 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	464		$ 464		266
Accumulated Amortization	93		93		49
Net Carrying Amount	371		$ 371		217
Acquired intangible assets, weighted-average useful life			3 years 9 months 18 days
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	861		$ 861		699
Accumulated Amortization	503		503		461
Net Carrying Amount	358		$ 358		$ 238
Acquired intangible assets, weighted-average useful life			10 years
Acquisition-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of acquisition-related intangible assets	$ 215	$ 194	$ 432	$ 398