Debt - Schedule (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Finance leases	$ 52.7	$ 61.5
Less: unamortized debt discounts and debt issuance costs	(36.5)	(39.7)
Total long-term debt (including current portion)	6,153.5	6,541.4
Current portion of long-term debt	852.4	376.2
Total long-term debt	5,301.1	6,165.2
Short-term borrowings	26.4	20.9
Current portion of long-term debt and short-term borrowings	878.8	397.1
Senior notes \| CAD 500 million 2.84% notes due July 2023(1)
Debt Instrument [Line Items]
Long-term debt, carrying amount	0.0	368.9
Senior notes \| EUR 800 million 1.25% notes due July 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount	845.8	856.4
Senior notes \| CAD 500 million 3.44% notes due July 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	368.3	368.9
Senior notes \| $2.0 billion 3.0% notes due July 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	2,000.0	2,000.0
Senior notes \| $1.1 billion 5.0% notes due May 2042
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,100.0	1,100.0
Senior notes \| $1.8 billion 4.2% notes due July 2046
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,800.0	1,800.0
Other
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 23.2	$ 25.4

Amount of debt and lease obligation, classified as current.

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