Other Identifiable Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions |
Oct. 01, 2021 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Disclosure of detailed information about intangible assets [line items] | |||
| Goodwill impairment | $ 0 | ||
| Reuters [member] | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Trade Name | $ 1,939 | $ 1,939 | |
| West [member] | |||
| Disclosure of detailed information about intangible assets [line items] | |||
| Trade Name | $ 707 | $ 707 |