Supplemental Balance Sheet Information Supplemental Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2015

Supplemental Balance Sheet Disclosures [Table Text Block]

Supplemental Balance Sheet Information

	December 31, 2015		December 31, 2014
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	40.3	$	29.5
Commercial paper	32.2		148.2
Total	$	72.5	$	177.7

	December 31, 2015			December 31, 2014
	(In millions of dollars)
Trade Receivables – Net
Billed trade receivables	$	116.8		$	128.7
Unbilled trade receivables	0.7			1.4
Trade receivables, gross	117.5			130.1
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables – net	$	116.7		$	129.3
Inventories
Finished products	$	79.5		$	73.6
Work-in-process	63.6			66.7
Raw materials	53.4			54.2
Operating supplies and repair and maintenance parts	23.1			20.2
Total	$	219.6		$	214.7
Prepaid Expenses and Other Current Assets
Current derivative assets – Notes 10 and 11	$	1.5		$	85.7
Current deferred tax assets	49.6			86.4
Prepaid insurance	1.9			2.0
Short-term restricted cash	0.3			0.3
Other	3.4			4.2
Total	$	56.7		$	178.6
Property, Plant and Equipment – Net
Land and improvements	$	22.7		$	22.9
Buildings and leasehold improvements	71.8			63.8
Machinery and equipment	549.0			509.8
Construction in progress	48.5			25.2
Property, plant and equipment – gross	692.0			621.7
Accumulated depreciation	(196.9		)	(166.8		)
Assets held for sale	0.3			—
Property, plant and equipment – net	$	495.4		$	454.9
Other Assets
Restricted cash	$	10.9		$	10.0
Deferred financing costs	4.5			5.9
Deferred compensation plan assets	7.3			7.3
Derivative assets – Notes 10 and 11	0.1			—
Other	—			0.1
Total	$	22.8		$	23.3

	December 31, 2015		December 31, 2014
	(In millions of dollars)
Other Accrued Liabilities
Current derivative liabilities – Notes 10 and 11	$	14.1	$	94.9
Uncleared cash disbursements	8.0		9.1
Accrued income taxes and taxes payable	3.1		5.2
Accrued annual contribution to VEBAs	19.6		13.7
Short-term environmental accrual – Note 9	1.6		2.3
Accrued interest	1.5		3.7
Short-term deferred revenue – Note 1	1.2		0.2
Other	3.6		3.7
Total	$	52.7	$	132.8
Long-Term Liabilities
Derivative liabilities – Notes 10 and 11	$	2.1	$	1.9
Income tax liabilities	0.7		2.4
Workers’ compensation accruals	21.7		21.5
Long-term environmental accrual – Note 9	17.0		17.0
Long-term asset retirement obligations	4.8		4.4
Long-term deferred revenue – Note 1	0.3		0.5
Deferred compensation liability	7.7		7.2
Long-term capital leases	0.1		0.1
Long-term portion of contingent contribution to Union VEBA – Note 6	29.9		—
Other long-term liabilities	3.2		3.3
Total	$	87.5	$	58.3