Supplemental Balance Sheet Information (Tables)

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Balance Sheet Disclosures

Supplemental Balance Sheet Information

	March 31, 2018			December 31, 2017
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	17.3		$	23.5
Commercial paper	117.7			27.6
Total	$	135.0		$	51.1
Trade Receivables, Net
Billed trade receivables	$	186.1		$	165.9
Unbilled trade receivables	0.4			0.3
Trade receivables, gross	186.5			166.2
Allowance for doubtful receivables	(1.2		)	(1.2		)
Trade receivables, net	$	185.3		$	165.0

	March 31, 2018			December 31, 2017
	(In millions of dollars)
Inventories
Finished products	$	40.5		$	63.8
Work-in-process	63.3			78.3
Raw materials	68.2			61.3
Operating supplies	4.8			4.5
Total	$	176.8		$	207.9
Property, Plant and Equipment, Net
Land and improvements	$	21.1		$	21.1
Buildings and leasehold improvements	91.9			92.1
Machinery and equipment	698.6			689.1
Construction in progress	42.9			35.1
Property, plant and equipment, gross	854.5			837.4
Accumulated depreciation	(277.7		)	(267.9		)
Assets held for sale	1.9			1.9
Property, plant and equipment, net	$	578.7		$	571.4
Other Accrued Liabilities
Uncleared cash disbursements	$	4.7		$	7.3
Accrued income taxes and taxes payable	10.8			6.8
Accrued annual contribution to VEBAs – Note 3	—			15.7
Accrued interest	8.4			2.9
Other	11.7			7.8
Total	$	35.6		$	40.5
Long-Term Liabilities
Workers' compensation accruals	$	23.2		$	22.6
Long-term environmental accrual – Note 6	14.7			15.8
Other long-term liabilities	23.4			21.6
Total	$	61.3		$	60.0