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Benefit Plans - 2015 Long-Term Stock Incentive Plan (Details) shares in Millions | 9 Months Ended
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Sep. 30, 2020 shares
Performance-based Share Awards |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 3 years
2015 Long-Term Stock Incentive Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Restricted stock conversion to common stock | 1
Common stock available for future grants (in shares) | 142
2015 Long-Term Stock Incentive Plan | Employees and Non Employee Stock Option |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Stock option expiration period | 10 years
2015 Long-Term Stock Incentive Plan | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 3 years
2015 Long-Term Stock Incentive Plan | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 4 years

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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 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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