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Restructuring-Related Expenses - Schedule of Restructuring-Related Expenses (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Restructuring-related expenses |  |  |
Expenses | $ 152.3 | $ 36.8 | [1]
Total expenses, net of tax |  | 31.5 |
Cost of Services |  |  |
Restructuring-related expenses |  |  |
Expenses |  | 4.5 |
Selling, General and Administrative |  |  |
Restructuring-related expenses |  |  |
Expenses |  | $ 32.3 |
[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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