Common Stock Shares

No definition available.

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- Definition

Number Of Shares That Count Towards Shares Authorized Limit

+ References

No definition available.

+ Details

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- Definition

Percentage Of Units Earned Of Units Granted

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Period

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Term after Termination upon Cancellation

+ References

No definition available.

+ Details

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

+ References

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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.

+ Details

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ 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 (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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Stock Compensation Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential shares of common stock issued under current stock compensation plan (in shares)	18,000,000
Stock compensation plan, expiration date	Apr. 09, 2027
Contractual term	7 years 6 months
Aggregate intrinsic value of options exercised	$ 0	$ 3	$ 9
Unearned compensation cost related to unvested portion	$ 22
Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares that count towards shares authorized limit per share granted (in shares)	1
Vesting period	4 years
Stock options conversion basis (in shares)	1
Contractual term	10 years
Cancellation, days after termination of employment	90 days
Options \| Year 1
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Options \| Year 2
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Options \| Year 3
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Options \| Year 4
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Awards, Excluding Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares that count towards shares authorized limit per share granted (in shares)	2
Performance Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award performance period	3 years
Performance Share Units \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of units earned to units granted	0.00%	0.00%	0.00%
Performance Share Units \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of units earned to units granted	133.00%	200.00%	200.00%
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award performance period	3 years