Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value Recurring Basis

The following tables present our assets that are measured at fair value on a recurring basis at March 31, 2016 and December 31, 2015:

	Fair Value Measurements at
	March 31, 2016
Assets	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In millions)
Marketable securities (Other assets)	$	8.5	$	8.5	$	—	$	—
Derivative contracts	30.2		—		28.8		1.4
Total	$	38.7	$	8.5	$	28.8	$	1.4

	Fair Value Measurements at
	December 31, 2015
Assets	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In millions)
Marketable securities (Other assets)	$	8.5	$	8.5	$	—	$	—
Derivative contracts	38.6		—		36.6		2.0
Total	$	47.1	$	8.5	$	36.6	$	2.0

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The table below presents a reconciliation for assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three months ended March 31, 2016.

	Hedging Contracts, net
	(In millions)
Balance as of January 1, 2016	$	2.0
Total gains/(losses) (realized or unrealized):
Included in earnings	1.0
Included in other comprehensive income	(0.5		)
Purchases, sales, issuances and settlements	(1.1		)
Transfers in and out of Level 3	—
Balance as of March 31, 2016	$	1.4
The amount of total gains/(losses) for the period included in earnings (derivative income) attributable to the change in unrealized gain/(losses) relating to derivatives still held at March 31, 2016	$	—