Financial Statements for Guarantors of the Senior Notes (Details 2) - USD ($) $ in Millions	Mar. 31, 2016		Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Assets:
Cash and cash equivalents	$ 635.7	[1]	$ 786.0	$ 590.7	$ 887.9
Short-term marketable securities	199.9	[1]	84.9
Receivables, net of allowance	375.0	[1]	369.9
Income tax receivable	21.9	[1]	94.9
Inventory	936.1	[1]	943.1
Property, plant, and equipment, net	5,523.5	[1]	5,348.0
Investments in and advances to subsidiaries	0.0		0.0
Restricted cash	185.6	[1]	195.8
Goodwill and other assets	1,032.0		1,063.3
Total assets	8,909.7	[1]	8,885.9
Liabilities:
Accounts payable	223.8	[1]	216.8
Accrued liabilities	452.3	[1]	529.6
Debt	3,171.0	[1]	3,195.4
Deferred income	25.8	[1]	27.1
Deferred income taxes	813.5	[1]	752.2
Advances from subsidiaries	0.0		0.0
Other liabilities	117.3	[1]	116.1
Total stockholders' equity	4,106.0	[1]	4,048.7
Total liabilities and stockholders' equity	8,909.7	[1]	8,885.9
Reportable legal entities | Parent
Assets:
Cash and cash equivalents	611.4		768.3	548.5	827.7
Short-term marketable securities	199.9		84.9
Receivables, net of allowance	0.3		0.1
Income tax receivable	21.9		94.9
Inventory	0.0		0.0
Property, plant, and equipment, net	39.8		37.7
Investments in and advances to subsidiaries	6,378.3		6,262.9
Restricted cash	0.0		0.0
Goodwill and other assets	175.5		178.8
Total assets	7,427.1		7,427.6
Liabilities:
Accounts payable	9.6		9.9
Accrued liabilities	203.2		224.9
Debt	805.0		800.6
Deferred income	0.0		0.0
Deferred income taxes	37.2		31.2
Advances from subsidiaries	2,164.7		2,212.2
Other liabilities	101.4		100.1
Total stockholders' equity	4,106.0		4,048.7
Total liabilities and stockholders' equity	7,427.1		7,427.6
Reportable legal entities | Combined Guarantor Subsidiaries
Assets:
Cash and cash equivalents	4.8		1.7	2.4	11.1
Short-term marketable securities	0.0		0.0
Receivables, net of allowance	192.4		196.3
Income tax receivable	0.0		0.0
Inventory	641.2		634.1
Property, plant, and equipment, net	1,864.6		1,597.0
Investments in and advances to subsidiaries	3,537.6		3,633.1
Restricted cash	0.0		0.2
Goodwill and other assets	587.5		579.8
Total assets	6,828.1		6,642.2
Liabilities:
Accounts payable	89.5		62.9
Accrued liabilities	144.1		137.3
Debt	34.9		35.6
Deferred income	24.2		25.4
Deferred income taxes	765.8		711.3
Advances from subsidiaries	0.0		0.0
Other liabilities	13.6		13.6
Total stockholders' equity	5,756.0		5,656.1
Total liabilities and stockholders' equity	6,828.1		6,642.2
Reportable legal entities | Combined Non-Guarantor Subsidiaries
Assets:
Cash and cash equivalents	48.4		51.1	76.9	89.4
Short-term marketable securities	0.0		0.0
Receivables, net of allowance	182.3		173.5
Income tax receivable	0.0		0.0
Inventory	311.6		325.4
Property, plant, and equipment, net	4,106.5		4,204.3
Investments in and advances to subsidiaries	987.9		908.5
Restricted cash	156.7		160.5
Goodwill and other assets	303.0		304.7
Total assets	6,096.4		6,128.0
Liabilities:
Accounts payable	124.8		144.3
Accrued liabilities	140.1		168.5
Debt	2,331.1		2,359.2
Deferred income	1.6		1.7
Deferred income taxes	10.3		9.4
Advances from subsidiaries	0.0		0.0
Other liabilities	2.3		2.4
Total stockholders' equity	3,486.2		3,442.5
Total liabilities and stockholders' equity	6,096.4		6,128.0
Eliminations
Assets:
Cash and cash equivalents	(28.9)		(35.1)	$ (37.1)	$ (40.3)
Short-term marketable securities	0.0		0.0
Receivables, net of allowance	0.0		0.0
Income tax receivable	0.0		0.0
Inventory	(16.7)		(16.4)
Property, plant, and equipment, net	(487.4)		(491.0)
Investments in and advances to subsidiaries	(10,903.8)		(10,804.5)
Restricted cash	28.9		35.1
Goodwill and other assets	(34.0)		0.0
Total assets	(11,441.9)		(11,311.9)
Liabilities:
Accounts payable	(0.1)		(0.3)
Accrued liabilities	(35.1)		(1.1)
Debt	0.0		0.0
Deferred income	0.0		0.0
Deferred income taxes	0.2		0.3
Advances from subsidiaries	(2,164.7)		(2,212.2)
Other liabilities	0.0		0.0
Total stockholders' equity	(9,242.2)		(9,098.6)
Total liabilities and stockholders' equity	$ (11,441.9)		$ (11,311.9)

[1] (unaudited)