Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 388.4	$ 282.5
Accounts receivable, net	641.7	539.1
Inventories, net	226.9	230.5
Prepaid expenses and other	77.4	72.1
Total current assets	1,334.4	1,124.2
Property, plant and equipment, net	1,080.7	1,046.2
Deferred income taxes	352.2	373.6
Goodwill	154.4	154.4
GM postretirement cost sharing asset	238.2	243.2
Other assets and deferred charges	272.8	261.1
Total assets	3,432.7	3,202.7
Current liabilities
Current portion of long-term debt	3.4	3.3
Accounts payable	503.8	412.7
Accrued compensation and benefits	113.0	128.0
Deferred revenue	24.1	22.9
Accrued expenses and other	107.6	132.3
Total current liabilities	751.9	699.2
Long-term debt, net	1,403.3	1,375.7
Deferred revenue	57.1	65.7
Postretirement benefits and other long-term liabilities	763.0	760.6
Total liabilities	2,975.3	2,901.2
Stockholders' equity
Common stock, par value $0.01 per share	0.9	0.8
Paid-in capital	649.4	638.9
Retained earnings	336.3	204.2
Treasury stock at cost, 6.5 million shares as of June 30, 2016 and 6.2 million shares as of December 31, 2015	(190.9)	(185.9)
Accumulated other comprehensive loss
Defined benefit plans, net of tax	(219.2)	(223.9)
Foreign currency translation adjustments	(103.4)	(119.2)
Unrecognized loss on cash flow hedges	(15.7)	(13.4)
Total stockholders’ equity	457.4	301.5
Total liabilities and stockholders' equity	$ 3,432.7	$ 3,202.7