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Incentive Plans (Summary of Awards Granted) (Details) $ / shares in Units, $ in Millions | 6 Months Ended
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Jun. 30, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Threshold of executive compensation not eligible for U.S. income tax deduction | $ | $ 1.0
2020 Long-Term Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Maximum number of shares available for issuance (in shares) | 5,000,000,000,000
Performance-Based RSUs | 2020 Long-Term Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Grants in period (in shares) | 580,600
Fair value per share at grant date (in USD per share) | $ / shares | $ 47.37
Award vesting period | 3 years
Time-Based RSUs | 2020 Long-Term Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Grants in period (in shares) | 273,400
Fair value per share at grant date (in USD per share) | $ / shares | $ 32.12
Award vesting period | 3 years
Time-Based RSUs | 2021 NED Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Grants in period (in shares) | 73,092
Fair value per share at grant date (in USD per share) | $ / shares | $ 32.84
Cash Settled RSUs | 2020 Long-Term Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Grants in period (in shares) | 674,300
Fair value per share at grant date (in USD per share) | $ / shares | $ 32.12
Award vesting period | 3 years

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- Definition Tax Cuts and Jobs Act of 2017, Threshold of Deductible Compensation For Executive Officers + References No definition available. + Details
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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://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 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)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued 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 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)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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