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Financial Instruments, Risk Management and Fair Value Measurements - Nonrecurring Fair Value (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Non-cash commercial actions for India held for sale business	$ (282.2)	$ 0.0
Disposal Group, Held-for-Sale, Not Discontinued Operations | India Held for Sale Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Non-cash commercial actions for India held for sale business	(226.8)
Net assets held for sale	450.0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Net assets related to India held for sale business	450.0
Non-cash commercial actions for India held for sale business	(226.8)
Total assets	450.0
Assets, fair value adjustment	(226.8)
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Net assets related to India held for sale business	0.0
Total assets	0.0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Net assets related to India held for sale business	0.0
Total assets	0.0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Net assets related to India held for sale business	450.0
Total assets	$ 450.0

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