Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets:
Net investment hedges	$ 0.0	$ 9.1	$ 0.0
Total assets	84.7	113.0	179.2
Liabilities:
Net investment hedges	24.4	0.0	36.5
Deferred Compensation Plan Assets
Assets:
Plan assets	84.7	74.1	80.4
Qualified Replacement Plan Assets
Assets:
Plan assets	0.0	29.8	98.8
Level 1
Assets:
Total assets	84.7	73.5	141.9
Level 1 | Deferred Compensation Plan Assets
Assets:
Plan assets	84.7	43.7	43.1
Level 1 | Qualified Replacement Plan Assets
Assets:
Plan assets		29.8	98.8
Level 2
Assets:
Net investment hedges		9.1
Total assets	0.0	39.5	37.3
Liabilities:
Net investment hedges	24.4		36.5
Level 2 | Deferred Compensation Plan Assets
Assets:
Plan assets		30.4	37.3
Liabilities:
Cost basis of investment funds	76.3	67.2	63.0
Level 2 | Qualified Replacement Plan Assets
Liabilities:
Cost basis of investment funds		$ 29.8	$ 86.9
NAV | Deferred Compensation Plan Assets
Assets:
Plan assets	$ 6.4