Financial Instruments, Risk Management and Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Assets
Derivative assets	$ 40.1	$ 16.6
Liabilities
Derivative liabilities	10.6	26.1
Fair Value, Measurements, Recurring
Assets
Other	192.2	298.1
Total assets	232.3	314.7
Liabilities
Other	18.1	19.6
Total liabilities	28.7	45.7
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Other	158.6	262.4
Total assets	158.6	262.4
Liabilities
Other	18.1	19.6
Total liabilities	18.1	19.6
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2)
Assets
Other	0.0	0.0
Total assets	40.1	16.6
Liabilities
Other	0.0	0.0
Total liabilities	10.6	26.1
Fair Value, Measurements, Recurring \| Significant Unobservable Inputs (Level 3)
Assets
Other	33.6	35.7
Total assets	33.6	35.7
Liabilities
Other	0.0	0.0
Total liabilities	0.0	0.0
Foreign exchange contracts
Assets
Derivative assets	40.1	16.6
Liabilities
Derivative liabilities	10.6	26.1
Foreign exchange contracts \| Fair Value, Measurements, Recurring
Assets
Derivative assets	40.1	16.6
Liabilities
Derivative liabilities	10.6	26.1
Foreign exchange contracts \| Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Derivative assets	0.0	0.0
Liabilities
Derivative liabilities	0.0	0.0
Foreign exchange contracts \| Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2)
Assets
Derivative assets	40.1	16.6
Liabilities
Derivative liabilities	10.6	26.1
Foreign exchange contracts \| Fair Value, Measurements, Recurring \| Significant Unobservable Inputs (Level 3)
Assets
Derivative assets	0.0	0.0
Liabilities
Derivative liabilities	$ 0.0	$ 0.0