Intangible Assets - Carrying Amounts of Identifiable Intangible Assets (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
|
| Goodwill And Intangible Assets Disclosure [Abstract] | ||
| Indefinite-lived intangible assets | $ 17,578 | |
| Indefinite-lived intangible assets | 17,578 | |
| Finite-lived intangible assets, Beginning balance | 875 | |
| Finite-lived intangible assets, amortization expense | (38) | $ (34) |
| Finite-lived intangible assets, Ending balance | 837 | |
| Intangible assets, Beginning balance | 18,453 | |
| Intangible assets, Ending balance | $ 18,415 | |
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|