Acquisitions - Additional Information (Details) $ in Millions |
9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
|
Jul. 02, 2021
USD ($)
|
Sep. 30, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
Acquisition
|
Sep. 30, 2021
USD ($)
|
Jun. 30, 2021
USD ($)
|
|
| Business Acquisition [Line Items] | |||||
| Goodwill | $ 2,245 | $ 3,356 | $ 2,250 | ||
| Number of business acquisition completed | Acquisition | 1 | ||||
| Foley Trasimene Acquisition Corp | |||||
| Business Acquisition [Line Items] | |||||
| Consideration transferred | $ 4,970 | ||||
| Business combination, deferred underwriting costs related to initial public offering | 36 | ||||
| Business combination, fees related to PIPE Investment | 37 | ||||
| Business combination, acquisition-related costs | 21 | ||||
| Business combination, seller transaction costs | 39 | ||||
| Business combination, advisory and investment banker fees | 36 | ||||
| Business combination, certain executive compensation related expenses | 36 | ||||
| Goodwill | $ 3,356 | ||||
| Business acquisition, pro forma nonrecurring, direct transaction costs | $ 11 |