The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Share-Based Compensation - Schedule Of Performance Stock Unit Grants (Details) - Performance Shares - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		12 Months Ended
	Aug. 31, 2021	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted	351,118	124,711
Weighted average grant date fair value per share	$ 40.27	$ 38.22
Adjusted EBITDA
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			178,224	117,975	93,566
Weighted average grant date fair value per share			$ 39.55	$ 25.69	$ 33.32
Fair value of shares vested (in millions)			$ 0	$ 2	$ 0
Contract Sales
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			62,356	50,554	40,094
Weighted average grant date fair value per share			$ 38.22	$ 25.69	$ 33.32
Fair value of shares vested (in millions)			$ 0	$ 1	$ 0
Cost Saving
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted			475,829	50,554	40,094
Weighted average grant date fair value per share			$ 39.73	$ 25.69	$ 33.32
Fair value of shares vested (in millions)				$ 1