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Share-Based Payments (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Feb. 29, 2020	Sep. 30, 2020	Dec. 31, 2019
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards issued (shares)		400,000
Restricted Stock | Service Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards issued (shares)		200,000
Restricted Stock | Service and Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance measurement period		2 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)		100,000
SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SARs outstanding (shares)			115,545
Fair value of SARs			$ 101
Cash used to settle award	$ 101

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- Definition

Allocated Share-based Compensation Liability

+ References

No definition available.

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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

+ References

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-Publisher FASB
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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).

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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.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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

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