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Business Combinations (Tables) | 12 Months Ended
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Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] | Acquired assets (liabilities) at acquisition date were:
(in millions) |  | Change |  | Other Acquisitions |  | Total
Cash and cash equivalents |  | $ | 222 |  |  | $ | 523 |  |  | $ | 745 |
Accounts receivable and other current assets |  | 925 |  |  | 696 |  |  | 1,621 |
Assets held-for-sale |  | 2,310 |  |  | — |  |  | 2,310 |
Property, equipment and other long-term assets |  | 254 |  |  | 1,882 |  |  | 2,136 |
Other intangible assets |  | 4,050 |  |  | 1,764 |  |  | 5,814 |
Total identifiable assets acquired |  | 7,761 |  |  | 4,865 |  |  | 12,626 |
Medical costs payable |  | — |  |  | (308) |  |  | (308) |
Accounts payable and other current liabilities |  | (1,017) |  |  | (843) |  |  | (1,860) |
Liabilities held-for-sale |  | (101) |  |  | — |  |  | (101) |
Other long-term liabilities |  | (1,193) |  |  | (713) |  |  | (1,906) |
Total identifiable liabilities acquired |  | (2,311) |  |  | (1,864) |  |  | (4,175) |
Total net identifiable assets |  | 5,450 |  |  | 3,001 |  |  | 8,451 |
Goodwill |  | 8,496 |  |  | 9,214 |  |  | 17,710 |
Redeemable noncontrolling interests |  | — |  |  | (3,108) |  |  | (3,108) |
Nonredeemable noncontrolling interests |  | — |  |  | (370) |  |  | (370) |
Net assets acquired |  | $ | 13,946 |  |  | $ | 8,737 |  |  | $ | 22,683 |
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] | The acquisition date fair values and weighted-average useful lives assigned to finite-lived intangible assets acquired in business combinations consisted of the following by year of acquisition:
|  | 2022 |  | 2021
(in millions, except years) |  | Fair Value |  | Weighted-Average Useful Life |  | Fair Value |  | Weighted-Average Useful Life
Customer-related |  | $ | 3,927 |  |  | 15 years |  | $ | 484 |  |  | 9 years
Trademarks and technology |  | 1,058 |  |  | 6 years |  | 147 |  |  | 5 years
Other |  | 776 |  |  | 13 years |  | 29 |  |  | 11 years
Total acquired finite-lived intangible assets |  | $ | 5,761 |  |  | 13 years |  | $ | 660 |  |  | 8 years
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combinations | The acquisition date fair values and weighted-average useful lives assigned to finite-lived intangible assets acquired consisted of the following:
|  | Change |  | Other Acquisitions |  | Total
(in millions, except years) |  | Fair Value |  | Weighted-Average Useful Life |  | Fair Value |  | Weighted-Average Useful Life |  | Fair Value |  | Weighted-Average Useful Life
Customer-related |  | $ | 3,063 |  |  | 15 years |  | $ | 864 |  |  | 13 years |  | $ | 3,927 |  |  | 15 years
Trademarks and technology |  | 977 |  |  | 6 years |  | 81 |  |  | 4 years |  | 1,058 |  |  | 6 years
Other |  | 10 |  |  | 1 year |  | 766 |  |  | 13 years |  | 776 |  |  | 13 years
Total acquired finite-lived intangible assets |  | $ | 4,050 |  |  | 13 years |  | $ | 1,711 |  |  | 13 years |  | $ | 5,761 |  |  | 13 years

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- Definition Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combinations Change Healthcare and other acquisitions + References No definition available. + Details
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- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. + 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) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472 + Details
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