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Acquisitions - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Consideration transferred:
Cash	$ 0	$ 6
Fair value of net assets acquired:
Goodwill	$ 67		$ 67

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-SubTopic 20
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-Publisher FASB
-Name Accounting Standards Codification
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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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-Name Accounting Standards Codification
-Topic 230
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