Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Finite-Lived Intangible Assets [Line Items] | ||
Gross Amount | $ 29,819 | $ 29,559 |
Accumulated Amortization | 7,779 | 7,053 |
Unamortized: Trademarks and Other | 3,923 | 3,918 |
Total Intangible Assets Gross Excluding Goodwill | 33,742 | 33,477 |
Service portfolios [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Amount | 2,179 | 2,164 |
Accumulated Amortization | 1,656 | 1,608 |
Patents and trademarks [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Amount | 361 | 361 |
Accumulated Amortization | 245 | 236 |
Collaboration intangible assets [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Amount | 4,681 | 4,509 |
Accumulated Amortization | 779 | 649 |
Customer relationships and other [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Amount | 22,598 | 22,525 |
Accumulated Amortization | $ 5,099 | $ 4,560 |