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Derivative Instruments - Balance Sheet Location (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	$ 378.5	$ 261.1
Gross Derivative Liabilities	349.5	266.6
Commodity contracts
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	371.0	259.0
Gross Derivative Liabilities	326.0	255.0
Foreign currency contracts
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	7.5	2.0
Gross Derivative Liabilities	19.8	11.6
Interest rate contract
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Liabilities	3.7
Derivatives designated as hedging instruments
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	126.0	1.7
Gross Derivative Liabilities	127.2	20.0
Derivatives designated as hedging instruments | Commodity contracts
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	126.0	1.7
Gross Derivative Liabilities	123.5	20.0
Derivatives designated as hedging instruments | Commodity contracts | Short-term derivative assets, net
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	124.9	0.0
Gross Derivative Liabilities	120.7	0.0
Derivatives designated as hedging instruments | Commodity contracts | Accrued expenses and other current liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	1.0	1.7
Gross Derivative Liabilities	2.3	20.0
Derivatives designated as hedging instruments | Commodity contracts | Other long-term liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.1	0.0
Gross Derivative Liabilities	0.5	0.0
Derivatives designated as hedging instruments | Interest rate contract
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.0	0.0
Gross Derivative Liabilities	3.7	0.0
Derivatives designated as hedging instruments | Interest rate contract | Accrued expenses and other current liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.0	0.0
Gross Derivative Liabilities	1.3	0.0
Derivatives designated as hedging instruments | Interest rate contract | Other long-term liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.0	0.0
Gross Derivative Liabilities	2.4	0.0
Derivatives not designated as hedging instruments
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	252.5	259.4
Gross Derivative Liabilities	222.3	246.6
Derivatives not designated as hedging instruments | Commodity contracts
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	245.0	257.3
Gross Derivative Liabilities	202.5	235.0
Derivatives not designated as hedging instruments | Commodity contracts | Short-term derivative assets, net
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	164.9	65.7
Gross Derivative Liabilities	102.7	7.2
Derivatives not designated as hedging instruments | Commodity contracts | Identifiable intangible and other non-current assets
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	32.1	23.0
Gross Derivative Liabilities	7.9	4.8
Derivatives not designated as hedging instruments | Commodity contracts | Accrued expenses and other current liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	30.5	161.0
Gross Derivative Liabilities	68.4	203.4
Derivatives not designated as hedging instruments | Commodity contracts | Other long-term liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	17.5	7.7
Gross Derivative Liabilities	23.5	19.7
Derivatives not designated as hedging instruments | Foreign currency contracts
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	7.5	2.0
Gross Derivative Liabilities	19.8	11.6
Derivatives not designated as hedging instruments | Foreign currency contracts | Short-term derivative assets, net
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.0	1.2
Gross Derivative Liabilities	0.0	0.2
Derivatives not designated as hedging instruments | Foreign currency contracts | Accrued expenses and other current liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	7.5	0.9
Gross Derivative Liabilities	19.6	11.4
Derivatives not designated as hedging instruments | Foreign currency contracts | Other long-term liabilities
Information about derivative instruments measured at fair value and their locations on the consolidated balance sheet
Gross Derivative Assets	0.0	0.0
Gross Derivative Liabilities	$ 0.2	$ 0.0

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- Definition

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