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Acquisitions and Dispositions of Businesses - Completed Dispositions (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) disposition | Dec. 31, 2020 USD ($) disposition | Dec. 31, 2019 USD ($) disposition
Business Combination and Asset Acquisition [Abstract] |  |  |
Number of dispositions | disposition | 6 | 1 | 8
Gain from disposal of business | $ | $ 142 | $ 25 | $ 13

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- Definition Represents the number of entities disposed of by the reporting entity. + References No definition available. + Details
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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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