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Stock-Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract] |
Compensation expense for stock-based payments and total income tax benefit recognized | Total compensation expense for all stock-related awards (including ESPP) and total income tax benefit recognized on the consolidated statements of income for these awards at December 31, 2022, 2021 and 2020 were as follows:
(in millions) |  | 2022 |  | 2021 |  | 2020
Compensation expense |  | $ | 84.8 |  |  | $ | 76.4 |  |  | $ | 96.9 |
Income tax benefit recognized |  | 13.2 |  |  | 20.6 |  |  | 23.6 |
Share-based Compensation, Stock Options, Activity [Table Text Block] | The following table summarizes stock option activity for 2022. Aggregate intrinsic value is in millions.
|  | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life (in years) |  | Aggregate Intrinsic Value
Outstanding at December 31, 2021 |  | 1,020 |  |  | $ | 56 |  |  | 0.5 |  | $ | 0.2 |
Exercised |  | (1,020) |  |  | 56 |  |  | — |  |  | — |
Cancelled |  | — |  |  | — |  |  | — |  |  | — |
Outstanding at December 31, 2022 |  | — |  |  | — |  |  | 0.0 |  | — |
Exercisable at December 31, 2022 |  | — |  |  | — |  |  | 0.0 |  | — |
Schedule of Nonvested Share Activity [Table Text Block] | The following table summarizes restricted stock, restricted stock units and performance shares activity for 2022:
| Number of Shares |  | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2021 | 1,115,055 |  |  | $ | 205 |
Granted | 492,307 |  |  | 195 |
Vested | (269,120) |  |  | 194 |
Cancelled | (220,783) |  |  | 204 |
Outstanding at December 31, 2022 | 1,117,459 |  |  | 204 |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + 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 (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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