Supplemental Balance Sheet Information Supplemental Balance Sheet Information (Tables)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Balance Sheet Disclosures [Text Block]

	September 30, 2017		December 31, 2016
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	17.3	$	37.9
Commercial paper	56.6		17.3
Total	$	73.9	$	55.2

	September 30, 2017			December 31, 2016
	(In millions of dollars)
Trade Receivables, Net
Billed trade receivables	$	138.8		$	138.2
Unbilled trade receivables	0.2			0.3
Trade receivables, gross	139.0			138.5
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables, net	$	138.2		$	137.7
Inventories
Finished products	$	64.8		$	73.8
Work-in-process	86.1			71.7
Raw materials	56.9			51.1
Operating supplies	4.4			5.0
Total	$	212.2		$	201.6
Property, Plant and Equipment, Net
Land and improvements	$	22.7		$	22.7
Buildings and leasehold improvements	90.2			88.6
Machinery and equipment	675.0			615.1
Construction in progress	27.8			34.8
Property, plant and equipment, gross	815.7			761.2
Accumulated depreciation	(258.2		)	(230.6		)
Assets held for sale	0.3			0.3
Property, plant and equipment, net	$	557.8		$	530.9
Other Accrued Liabilities
Uncleared cash disbursements	$	7.1		$	5.8
Accrued income taxes and taxes payable	9.0			4.3
Accrued annual contribution to VEBAs	12.0			20.0
Accrued interest	8.4			2.9
Other	6.8			7.1
Total	$	43.3		$	40.1
Long-Term Liabilities
Workers' compensation accruals	$	25.0		$	25.0
Long-term environmental accrual – Note 8	16.1			15.8
Long-term portion of contingent contribution to Union VEBA – Note 6	—			12.8
Other long-term liabilities	20.8			19.6
Total	$	61.9		$	73.2

Supplemental Balance Sheet Information

	September 30, 2017		December 31, 2016
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	17.3	$	37.9
Commercial paper	56.6		17.3
Total	$	73.9	$	55.2

	September 30, 2017			December 31, 2016
	(In millions of dollars)
Trade Receivables, Net
Billed trade receivables	$	138.8		$	138.2
Unbilled trade receivables	0.2			0.3
Trade receivables, gross	139.0			138.5
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables, net	$	138.2		$	137.7
Inventories
Finished products	$	64.8		$	73.8
Work-in-process	86.1			71.7
Raw materials	56.9			51.1
Operating supplies	4.4			5.0
Total	$	212.2		$	201.6
Property, Plant and Equipment, Net
Land and improvements	$	22.7		$	22.7
Buildings and leasehold improvements	90.2			88.6
Machinery and equipment	675.0			615.1
Construction in progress	27.8			34.8
Property, plant and equipment, gross	815.7			761.2
Accumulated depreciation	(258.2		)	(230.6		)
Assets held for sale	0.3			0.3
Property, plant and equipment, net	$	557.8		$	530.9
Other Accrued Liabilities
Uncleared cash disbursements	$	7.1		$	5.8
Accrued income taxes and taxes payable	9.0			4.3
Accrued annual contribution to VEBAs	12.0			20.0
Accrued interest	8.4			2.9
Other	6.8			7.1
Total	$	43.3		$	40.1
Long-Term Liabilities
Workers' compensation accruals	$	25.0		$	25.0
Long-term environmental accrual – Note 8	16.1			15.8
Long-term portion of contingent contribution to Union VEBA – Note 6	—			12.8
Other long-term liabilities	20.8			19.6
Total	$	61.9		$	73.2