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Discontinued Operations (Schedule of Assets and Liabilities From Discontinued Operations) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disposal Group, Including Discontinued Operation, Assets [Abstract] |  |
Current assets held for sale | $ 788.6 | $ 324.2
Assets held for sale | 0.0 | 521.6
Disposal Group, Including Discontinued Operation, Liabilities [Abstract] |  |
Current liabilities held for sale | 159.1 | 120.8
Liabilities held for sale | 0.0 | 64.1
Held-for-sale or Disposed of by Sale | TransCore and Zetec and CIVCO Radiotherapy |  |
Disposal Group, Including Discontinued Operation, Assets [Abstract] |  |
Accounts receivable, net | 74.7 | 117.3
Inventories, net | 47.8 | 33.3
Unbilled receivables | 158.2 | 168.9
Goodwill | 405.5 | 0.0
Other intangible assets, net | 31.0 | 0.0
Other current assets | 71.4 | 4.7
Current assets held for sale | 788.6 | 324.2
Goodwill | 0.0 | 429.2
Other intangible assets, net | 0.0 | 38.7
Other assets | 0.0 | 53.7
Assets held for sale | 0.0 | 521.6
Disposal Group, Including Discontinued Operation, Liabilities [Abstract] |  |
Accounts payable | 40.3 | 50.7
Accrued compensation | 27.0 | 23.5
Deferred taxes | 29.5 | 31.0
Other current liabilities | 62.3 | 46.6
Current liabilities held for sale | 159.1 | 120.8
Other liabilities | 0.0 | 33.1
Liabilities held for sale | $ 0.0 | $ 64.1

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