Derivative Instruments - Derivatives Gains and Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	$ 78.3	$ (15.7)	$ (24.3)	$ 64.1
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on commodity derivatives	0.3	7.5	5.1	7.5
Not Designated as Hedging Instrument | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on economic hedges	24.8	(6.8)	20.2	(16.2)
Not Designated as Hedging Instrument | Commodity contracts | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on commodity derivatives	78.0	(23.2)	(27.7)	56.4
Not Designated as Hedging Instrument | Commodity contracts | Operating Expense
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on commodity derivatives	0.0	0.0	(1.7)	0.0
Designated as Hedging Instrument | Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Realized gains reclassified out of accumulated other comprehensive income and into cost of materials and other on commodity derivatives designated as cash flow hedging instruments	$ 0.0	$ 0.0	$ 0.0	$ 0.2