Stock-Based Compensation - Schedule of PSU Activity (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSUs earned (in shares)			86,420	78,727
Common Stock issued net of tax withholding (in shares)			54,651	49,967
Related tax benefits realized			$ 1	$ 1
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSUs earned (in shares)	3,652	1,730	246,953	259,127
Common Stock issued net of tax withholding (in shares)	2,612	1,222	174,976	183,511
Related tax benefits realized	$ 0	$ 0	$ 5	$ 7

Share-Based Payment Arrangement, Exercise of Equity Instruments Other Than Options, Tax Benefit

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(02)
-URI https://asc.fasb.org/extlink&oid=128089324&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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- Definition

Number of shares issued under share-based payment arrangement.

+ 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
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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