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Restructuring-Related Expenses - Schedule of Restructuring Accruals (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Summary of activity for expenses related to the restructuring accruals |  |  |  |
Beginning balance |  | $ 26.2 | $ 73.3 |
Expenses |  | 152.3 | 36.8 | [1]
Cash payments |  |  | (82.7) |
Non-cash benefits/(charges) | [1] |  | (1.2) |
Ending balance |  |  | 26.2 |
Severance and Related Employee Benefits |  |  |  |
Summary of activity for expenses related to the restructuring accruals |  |  |  |
Beginning balance |  | 24.9 | 71.2 |
Expenses |  | 109.8 | 11.8 | [1]
Cash payments |  |  | (58.7) |
Non-cash benefits/(charges) | [1] |  | 0.6 |
Ending balance |  |  | 24.9 |
Facility Relocations and Closures, Consulting, and Other |  |  |  |
Summary of activity for expenses related to the restructuring accruals |  |  |  |
Beginning balance |  | 1.3 | 2.1 |
Expenses |  | $ 42.5 | 25.0 | [1]
Cash payments |  |  | (24.0) |
Non-cash benefits/(charges) | [1] |  | (1.8) |
Ending balance |  |  | $ 1.3 |
[1] | Non-cash benefits/(charges) include non-cash write-offs and accelerated depreciation of right-of-use ("ROU") assets and leasehold improvements and a non-cash benefit for adjustments to stock compensation for awards forfeited by employees. These amounts have been removed from the liability balance in the table above as they do not impact the restructuring accruals.

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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