Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,604	$ 5,929
Accumulated Amortization	4,159	3,950
Net Carrying Amount	1,445	1,979
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,639	4,972
Accumulated Amortization	3,649	3,570
Net Carrying Amount	990	1,402
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	266	254
Accumulated Amortization	49	30
Net Carrying Amount	217	224
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	699	703
Accumulated Amortization	461	350
Net Carrying Amount	$ 238	$ 353