Unrecognized cost of unvested liability-based performance units share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for liability-based performance units compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested liability-based restricted stock share-based compensation awards.

+ References

No definition available.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for liability-based restricted stock compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Period which an employee's right to exercise liability-based performance units are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement, Increase (Decrease) In Deferred Tax Asset

+ References

No definition available.

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- Definition

Period which an employee's right to exercise liability-based restricted stock award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Total fair value of restricted stock grants

+ References

No definition available.

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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

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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.

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- Definition

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).

+ 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

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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 authorized for issuance under share-based payment arrangement.

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Long-Term Incentive Compensation (Narrative) (Details) - USD ($)	1 Months Ended	12 Months Ended
	May 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted		0	0	0
Number of options exercised		0	0	0
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum shares	88,700,000
Period of service for immediate vesting upon death, disability or retirement	3 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock awards from grant date	3 years
Expiration period from date of grant	7 years
Increase (decrease) in deferred tax asset		$ 0	$ 1,000,000	$ 1,000,000
Equity-classified awards, unrecognized compensation cost		$ 0
Number of options granted		0	0	0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock awards from grant date	4 years
Increase (decrease) in deferred tax asset		$ 2,000,000	$ 1,000,000	$ 2,000,000
Equity-classified awards, unrecognized compensation cost		$ 1,000,000
Equity-classified awards, weighted average period over which unrecognized cost is recognized, years		1 year
Total fair value of restricted stock grants		$ 2,000,000	2,000,000	2,000,000
Total fair value of shares vested		$ 6,000,000	$ 11,000,000	$ 19,000,000
Number of units awarded		584,000	493,000	350,000
Performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock awards from grant date	3 years	3 years	3 years	3 years
Increase (decrease) in deferred tax asset		$ 1,000,000	$ 1,000,000	$ 1,000,000
Number of units awarded		0	0	0
Performance units \| Cliff Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock awards from grant date	3 years
Equity-Classified Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-classified awards, unrecognized compensation cost		$ 1,000,000
Equity-classified awards, weighted average period over which unrecognized cost is recognized, years		1 year
Number of units awarded		186,000
Liability-Classified RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in deferred tax asset		$ 1,000,000	$ 1,000,000	$ 2,000,000
Liability-classified restricted stock, vesting period		4 years
Liability-classified restricted stock, unrecognized compensation cost		$ 22,000,000
Liability-classified restricted stock, weighted average period over which unrecognized cost is recognized, years		2 years
Liability-Classified Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in deferred tax asset		$ 2,000,000	$ (1,000,000)	$ 1,000,000
Liability-classified performance units, vesting period		3 years
Liability-classified performance units, unrecognized compensation cost		$ 14,000,000
Liability-classified performance units, weighted average period over which unrecognized cost is recognized, years		2 years
Performance cash awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for stock awards from grant date		4 years
Increase (decrease) in deferred tax asset		$ 1,000,000
Liability-classified restricted stock, unrecognized compensation cost		$ 14,000,000
Liability-classified restricted stock, weighted average period over which unrecognized cost is recognized, years		3 years 2 months 12 days