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Description of Business and Summary of Significant Accounting Policies (Property and Equipment Net) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Reported Value Measurement [Member] | Continuing Operations [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Assets held for sale in continuing operations | $ 53.3 | $ 25.5
Reported Value Measurement [Member] | Discontinued Operations [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Assets held for sale in discontinued operations | $ 1.1 | $ 8.0
Buildings and improvements [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment estimated useful life | 5 years |
Buildings and improvements [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment estimated useful life | 40 years |
Furniture, fixtures, and equipment [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment estimated useful life | 3 years |
Furniture, fixtures, and equipment [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment estimated useful life | 10 years |

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