Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Patents and developed technology | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Weighted-average useful life | 8 months 12 days | ||
| Acquired intangible assets, weighted-average useful life | 4 years 1 month 6 days | ||
| Customer relationships | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Weighted-average useful life | 3 years 6 months | ||
| Acquired intangible assets, weighted-average useful life | 4 years 3 months 18 days | ||
| Trade names and other | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Weighted-average useful life | 4 years 6 months | ||
| Acquired intangible assets, weighted-average useful life | 9 years 10 months 24 days | ||
| Acquisition-related intangible assets | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Amortization expense of acquisition-related intangible assets | $ 875 | $ 774 | $ 795 |