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Business Combinations Acquired Finite-Lived Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 5,761 | $ 660
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years | 8 years
Change Healthcare |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 4,050 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Other Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 1,711 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 5,761 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Customer-Related Intangible Assets [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 3,927 | $ 484
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 15 years | 9 years
Customer-Related Intangible Assets [Member] | Change Healthcare |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 3,063 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 15 years |
Customer-Related Intangible Assets [Member] | Other Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 864 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Customer-Related Intangible Assets [Member] | Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 3,927 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 15 years |
Trademarks and Technology [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 1,058 | $ 147
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 6 years | 5 years
Trademarks and Technology [Member] | Change Healthcare |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 977 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 6 years |
Trademarks and Technology [Member] | Other Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 81 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 4 years |
Trademarks and Technology [Member] | Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 1,058 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 6 years |
Other Intangible Assets [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 776 | $ 29
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years | 11 years
Other Intangible Assets [Member] | Change Healthcare |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 10 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 1 year |
Other Intangible Assets [Member] | Other Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 766 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Other Intangible Assets [Member] | Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 776 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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