Acquisitions - Additional Information (Details)
$ in Millions |
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3 Months Ended |
6 Months Ended |
12 Months Ended |
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Oct. 01, 2021
USD ($)
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Jul. 02, 2021
USD ($)
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Dec. 31, 2021
USD ($)
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Dec. 31, 2021
USD ($)
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Jun. 30, 2021
USD ($)
|
Dec. 31, 2021
USD ($)
Acquisition
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Dec. 31, 2020
USD ($)
Acquisition
|
Dec. 31, 2019
USD ($)
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Jul. 01, 2021
USD ($)
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| Business Acquisition [Line Items] |
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| Goodwill |
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|
$ 3,638
|
$ 3,638
|
$ 2,250
|
$ 3,638
|
$ 2,245
|
|
$ 3,383
|
| Number of business acquisition completed | Acquisition |
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|
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|
1
|
1
|
|
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| Revenue |
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|
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1,554
|
1,361
|
|
$ 2,728
|
$ 2,552
|
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| Technology Related Intangibles |
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| Business Acquisition [Line Items] |
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| Identifiable intangible assets, Useful life |
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|
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|
5 years 6 months
|
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| Foley Trasimene Acquisition Corp |
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| Business Acquisition [Line Items] |
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|
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| Consideration transferred |
|
$ 5,010
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| Business combination, deferred underwriting costs related to initial public offering |
|
36
|
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|
|
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| Business combination, fees related to PIPE Investment |
|
37
|
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|
|
|
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| Business combination, acquisition-related costs |
|
21
|
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|
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|
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| Business combination, seller transaction costs |
|
39
|
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|
|
|
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| Business combination, advisory and investment banker fees |
|
36
|
|
|
|
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| Business combination, certain executive compensation related expenses |
|
36
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| Goodwill |
|
3,383
|
|
|
|
|
|
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| Business acquisition, pro forma nonrecurring, direct transaction costs |
|
|
|
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|
$ 11
|
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| Other current assets |
|
162
|
|
|
|
|
|
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| Other assets |
|
425
|
|
|
|
|
|
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| Other current liabilities |
|
293
|
|
|
|
|
|
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| Other liabilities |
|
396
|
|
|
|
|
|
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| Fair value of fixed assets |
|
205
|
|
|
|
|
|
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| Fair value of noncontrolling |
|
800
|
|
|
|
|
|
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| Goodwill tax deductible |
|
$ 1,600
|
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| Foley Trasimene Acquisition Corp | Purchase Accounting Measurement |
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| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
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| Consideration transferred |
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|
40
|
|
|
|
|
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| Goodwill |
|
|
27
|
27
|
|
$ 27
|
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|
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| Other current assets |
|
|
3
|
3
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|
3
|
|
|
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| Other assets |
|
|
15
|
15
|
|
15
|
|
|
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| Other current liabilities |
|
|
9
|
9
|
|
9
|
|
|
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| Other liabilities |
|
|
15
|
15
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|
15
|
|
|
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| Fair value of fixed assets |
|
|
1
|
1
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|
1
|
|
|
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| Deferred taxes |
|
|
7
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7
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|
7
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|
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| Fair value of noncontrolling |
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|
$ 38
|
38
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$ 38
|
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| Foley Trasimene Acquisition Corp | Customer Related and Contract Based Intangibles |
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| Business Acquisition [Line Items] |
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|
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| Identifiable intangible assets, Useful life |
|
15 years
|
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| Foley Trasimene Acquisition Corp | Technology Related Intangibles |
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| Business Acquisition [Line Items] |
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| Identifiable intangible assets, Useful life |
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6 years
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| Retiree Health Exchange |
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| Business Acquisition [Line Items] |
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| Goodwill |
$ 78
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|
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| Other current assets |
29
|
|
|
|
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|
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| Goodwill tax deductible |
$ 78
|
|
|
|
|
|
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| Revenue |
|
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123
|
|
|
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| Retiree Health Exchange | Selling, general and administrative expenses |
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| Business Acquisition [Line Items] |
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| Business combination, acquisition-related costs |
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$ 3
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$ 1
|
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| Retiree Health Exchange | Customer Related and Contract Based Intangibles |
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| Business Acquisition [Line Items] |
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| Identifiable intangible assets, Useful life |
13 years
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| Retiree Health Exchange | Technology Related Intangibles |
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| Business Acquisition [Line Items] |
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| Identifiable intangible assets, Useful life |
5 years
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