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 |