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Income Taxes - Other Tax Disclosure Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Contingency [Line Items] |  |  |  |  |
Unrecognized Tax Benefits |  | $ 21.2 | $ 20.2 | $ 41.1 | $ 38.7
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense |  | 0.2 | (1.7) | 4.4 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued |  | 2.2 | 2.0 | $ 11.5 | $ 6.9
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 20.2 |  |  |
Tax Adjustments, Settlements, and Unusual Provisions | $ 18.5 |  |  |  |
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | $ 25.3 |  | $ 12.2 |  |
Minimum [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Income Tax Examination, Estimate of Possible Loss |  | 275.0 |  |  |
Maximum [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Income Tax Examination, Estimate of Possible Loss |  | $ 325.0 |  |  |

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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123452999&loc=d3e28511-109314 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123452999&loc=d3e28446-109314 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 + Details
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