Goodwill and Other Intangible Assets (Goodwill Rollforward) (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2021
USD ($)
| |
| Changes in Carrying Amount of Goodwill | |
| Balance as of December 31, 2020 | $ 21,175 |
| Acquisitions | 1,227 |
| Foreign currency translation and other adjustments | 4 |
| Balance as of June 30, 2021 | 22,406 |
| Google Services | |
| Changes in Carrying Amount of Goodwill | |
| Balance as of December 31, 2020 | 18,517 |
| Acquisitions | 1,221 |
| Foreign currency translation and other adjustments | 13 |
| Balance as of June 30, 2021 | 19,751 |
| Google Cloud | |
| Changes in Carrying Amount of Goodwill | |
| Balance as of December 31, 2020 | 1,957 |
| Acquisitions | 5 |
| Foreign currency translation and other adjustments | 1 |
| Balance as of June 30, 2021 | 1,963 |
| Other Bets | |
| Changes in Carrying Amount of Goodwill | |
| Balance as of December 31, 2020 | 701 |
| Acquisitions | 1 |
| Foreign currency translation and other adjustments | (10) |
| Balance as of June 30, 2021 | $ 692 |