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v3.23.3

Supplementary Data (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jan. 01, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Text Block [Abstract] |  |  |  |  |  |
Goodwill | $ 5,050.6 | $ 5,055.1 |  | $ 5,055.1 |  | $ 5,050.6
Goodwill, Acquired During Period |  |  |  | 9.8 |  |
Goodwill, Other Decrease |  |  |  | (5.3) |  |
Goodwill | 5,050.6 | 5,055.1 |  | 5,055.1 |  | 5,050.6
Goodwill, Transfers | 0.0 |  |  |  |  |
Goodwill, Acquired During Period |  |  |  | 9.8 |  |
Goodwill, Other Decrease |  |  |  | (5.3) |  |
Severance and termination costs |  | 0.0 | $ 0.0 | 0.4 | $ 0.2 |
Lease impairment costs |  | (0.7) | (7.3) | (1.9) | (2.0) |
Other restructuring costs |  | 0.1 | 1.5 | 0.8 | 2.5 |
Restructuring charges |  | (0.6) | (5.8) | (0.7) | 0.7 |
MD&E |  |  |  |  |  |
Text Block [Abstract] |  |  |  |  |  |
Goodwill | 2,665.2 | 2,668.0 |  | 2,668.0 |  | 2,484.6
Goodwill, Acquired During Period |  |  |  | 0.9 |  |
Goodwill, Other Decrease |  |  |  | 1.9 |  |
Goodwill | 2,665.2 | 2,668.0 |  | 2,668.0 |  | 2,484.6
Goodwill, Transfers | 180.6 |  |  |  |  |
Goodwill, Acquired During Period |  |  |  | 0.9 |  |
Goodwill, Other Decrease |  |  |  | 1.9 |  |
Lease impairment costs |  | (0.1) |  | (1.3) | (0.1) |
Restructuring charges |  | (0.1) | 0.0 | (1.3) | (0.1) |
IA&C |  |  |  |  |  |
Text Block [Abstract] |  |  |  |  |  |
Goodwill | 1,701.0 | 1,702.3 |  | 1,702.3 |  | 1,881.6
Goodwill, Acquired During Period |  |  |  | 7.9 |  |
Goodwill, Other Decrease |  |  |  | (6.6) |  |
Goodwill | 1,701.0 | 1,702.3 |  | 1,702.3 |  | 1,881.6
Goodwill, Transfers | (180.6) |  |  |  |  |
Goodwill, Acquired During Period |  |  |  | 7.9 |  |
Goodwill, Other Decrease |  |  |  | (6.6) |  |
Lease impairment costs |  | (0.6) |  | (0.8) | 5.2 |
Restructuring charges |  | (0.5) | 0.0 | (0.2) | 6.1 |
SC&E |  |  |  |  |  |
Text Block [Abstract] |  |  |  |  |  |
Goodwill | 684.4 | 684.8 |  | 684.8 |  | 684.4
Goodwill, Acquired During Period |  |  |  | 1.0 |  |
Goodwill, Other Decrease |  |  |  | (0.6) |  |
Goodwill | 684.4 | 684.8 |  | 684.8 |  | $ 684.4
Goodwill, Transfers | $ 0.0 |  |  |  |  |
Goodwill, Acquired During Period |  |  |  | 1.0 |  |
Goodwill, Other Decrease |  |  |  | (0.6) |  |
Lease impairment costs |  | (0.2) | (7.3) |  | (7.1) |
Restructuring charges |  | $ (0.2) | $ (5.8) | $ 0.7 | $ (5.4) |

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