Goodwill and Intangible Assets - Goodwill (Details) |
3 Months Ended | |||
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Mar. 31, 2021
USD ($)
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| Changes in the carrying amount of goodwill | ||||
| Balance at the beginning of the period | $ 33,124,000,000 | |||
| Goodwill measurement period adjustments | (564,000,000) | [1] | ||
| Foreign currency translation adjustments | (211,000,000) | |||
| Balance at the end of the period | 32,349,000,000 | |||
| Accumulated goodwill impairment losses | ||||
| Accumulated goodwill impairment losses | $ 0 | |||
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| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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