Goodwill and other intangible assets (Goodwill Roll Forward) (Details) $ in Millions |
9 Months Ended |
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Sep. 30, 2021
USD ($)
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| Goodwill [Roll Forward] | |
| Beginning balance | $ 14,689 |
| Currency translation adjustment | (24) |
| Ending balance | $ 14,665 |
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- 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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- 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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- 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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