Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,929	$ 6,177
Accumulated Amortization	3,950	3,957
Net Carrying Amount	1,979	2,220
Patents and developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,972	5,125
Accumulated Amortization	3,570	3,394
Net Carrying Amount	1,402	1,731
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	254	349
Accumulated Amortization	30	308
Net Carrying Amount	224	41
Trade names and other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	703	703
Accumulated Amortization	350	255
Net Carrying Amount	$ 353	$ 448