Supplemental Balance Sheet Information

6 Months Ended

Jun. 30, 2014

Supplemental Balance Sheet Information [Abstract]

Supplemental Balance Sheet Information

Supplemental Balance Sheet Information

	June 30, 2014		December 31, 2013
Cash and Cash Equivalents.
Cash and money market funds	$	69.7	$	57.7
Commercial paper	104.5		111.8
Total	$	174.2	$	169.5

Trade Receivables.
Billed trade receivables	$	123.7		$	120.2
Unbilled trade receivables	0.2			0.4
Trade receivables, gross	123.9			120.6
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables, net	$	123.1		$	119.8

Inventories.
Finished products	$	60.4	$	72.5
Work-in-process	64.3		75.9
Raw materials	53.3		47.2
Operating supplies and repair and maintenance parts	20.1		18.8
Total	$	198.1	$	214.4

Prepaid Expenses and Other Current Assets.
Current derivative assets – Notes 8 and 9	$	90.3	$	2.0
Current deferred tax assets	36.7		36.7
Short-term restricted cash	0.3		0.3
Prepaid taxes	1.8		—
Other	6.4		5.2
Total	$	135.5	$	44.2

Property, Plant and Equipment - Net.
Land and improvements	$	22.8		$	22.6
Buildings and leasehold improvements	54.7			53.0
Machinery and equipment	491.2			425.6
Construction in progress	24.7			66.0
Active property, plant and equipment, gross	593.4			567.2
Accumulated depreciation	(152.0		)	(137.9		)
Total	$	441.4		$	429.3

Other Assets.
Derivative assets – Notes 8 and 9	$	0.3	$	79.8
Restricted cash	9.3		9.3
Deferred financing costs	6.7		8.9
Deferred compensation plan assets	7.4		6.5
Other	0.3		0.3
Total	$	24.0	$	104.8

Other Accrued Liabilities.
Current derivative liabilities – Notes 8 and 9	$	89.5	$	1.8
Uncleared cash disbursements	9.1		9.6
Accrued income taxes and taxes payable	6.3		4.6
Accrued annual VEBA contribution	—		16.0
Short-term environmental accrual – Note 7	3.6		2.8
Accrued interest	3.6		3.7
Other	3.0		6.3
Total	$	115.1	$	44.8

Long-Term Liabilities.
Derivative liabilities – Notes 8 and 9	$	0.5	$	84.3
Income tax liabilities	5.2		5.0
Workers’ compensation accruals	24.4		23.3
Long-term environmental accrual – Note 7	18.6		20.0
Long-term asset retirement obligations	4.3		4.0
Deferred compensation liability	7.7		7.0
Long-term capital lease	0.1		0.1
Other long-term liabilities	2.9		2.7
Total	$	63.7	$	146.4

Long-Term Debt — Note 3.
Senior notes	$	225.0	$	225.0
Cash convertible senior notes	—		163.5
Total	$	225.0	$	388.5