Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair value of financial assets and liabilities [Table Text Block]

The fair value of financial assets and liabilities at June 30, 2020 and December 31, 2019, is shown in the table below:

	Fair Value Measurements
	Gross Amounts of Assets and Liabilities						Netting Adjustments(1)		Net Amounts Presented on the Balance Sheets
	Level 1		Level 2		Level 3
	(in millions)
Financial Assets	June 30, 2020
Fair value of derivative contracts – short-term	$	—	$	173.8	$	—	$	(4.4)	$	169.4
Fair value of derivative contracts – long-term	—		6.9		—		(0.7)		6.2
Fair value of Rabbi Trust marketable securities	23.5		—		—		—		23.5
Total financial assets	$	23.5	$	180.7	$	—	$	(5.1)	$	199.1
Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	6.2	$	—	$	(4.4)	$	1.8
Fair value of derivative contracts – long-term	—		3.9		—		(0.7)		3.2
Fair value of Wrap Plan obligations	25.5		—		—		—		25.5
Total financial liabilities	$	25.5	$	10.1	$	—	$	(5.1)	$	30.5
	December 31, 2019
Financial Assets
Fair value of derivative contracts – short-term	$	—	$	1.5	$	—	$	—	$	1.5
Fair value of derivative contracts – long-term	—		0.2		—		—		0.2
Fair value of Rabbi Trust marketable securities	23.1		—		—		—		23.1
Total financial assets	$	23.1	$	1.7	$	—	$	—	$	24.8
Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	18.7	$	—	$	—	$	18.7
Fair value of derivative contracts – long-term	—		0.5		—		—		0.5
Fair value of Wrap Plan obligations	26.8		—		—		—		26.8
Total financial liabilities	$	26.8	$	19.2	$	—	$	—	$	46.0

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⁽¹⁾The Company nets its derivative contract assets and liabilities outstanding with the same counterparty on the balance sheets for the contracts that contain netting provisions. Refer to Note 7 – Derivative Contracts for additional information regarding the Company's derivative contracts.

Fair value and related carrying amount of certain financial instruments [Table Text Block]

The following table discloses the fair value and related carrying amount of certain financial instruments not disclosed in other notes to the financial statements:

	Carrying Amount		Level 1 Fair Value		Carrying Amount		Level 1 Fair Value
	June 30, 2020				December 31, 2019
Financial Liabilities	(in millions)
Total debt outstanding	$	1,864.3	$	1,354.2	$	2,015.6	$	2,029.4