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Share-Based Compensation Plans - Shares Granted and Weighted Average Fair Value Per Share (Details) - $ / shares shares in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of shares granted, options (in shares) | 130 | 156
Total shares granted, options and non-options (in shares) | 542 | 474
Weighted-average per share fair value, options (in dollars per share) | $ 22.83 | $ 18.95
Weighted-average per share value, options and non-options (in dollars per share) | $ 70.19 | $ 64.18
Deferred Stock Units |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of shares granted, non-options (in shares) | 12 | 11
Weighted-average per share fair value, non-options (in dollars per share) | $ 90.18 | $ 97.10
Restricted Stock Units |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of shares granted, non-options (in shares) | 197 | 188
Weighted-average per share fair value, non-options (in dollars per share) | $ 85.66 | $ 86.47
Performance Share Units |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of shares granted, non-options (in shares) | 203 | 119
Weighted-average per share fair value, non-options (in dollars per share) | $ 84.34 | $ 85.25

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options and Non-Option Instruments, Grants in Period + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options and Non-Option Instruments, Grants in Period, Weighted Average Grant Date Fair Value + References No definition available. + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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