CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 122.4	$ 141.6
Accounts receivable, net	621.9	545.3
Short-term contract assets	47.7	0.0
Inventories, net	1,254.1	1,176.1
Prepaid expenses and other current assets	80.2	52.7
Total current assets	2,126.3	1,915.7
Property, plant and equipment, net	2,479.0	2,495.7
Goodwill	531.0	531.4
Other assets	257.0	242.6
Total assets	5,393.3	5,185.4
Current Liabilities:
Accounts payable	429.3	420.1
Accrued liabilities	225.3	282.4
Short-term contract liabilities	70.4	0.0
Short-term debt and current portion of long-term debt	16.3	10.1
Total current liabilities	741.3	712.6
Long-term debt	1,535.5	1,530.6
Accrued postretirement benefits	306.1	317.8
Pension liabilities	677.6	697.0
Deferred income taxes	9.7	9.7
Long-term contract liabilities	14.6	0.0
Other long-term liabilities	66.6	73.2
Total liabilities	3,351.4	3,340.9
ATI Stockholders' Equity:
Preferred stock, par value $0.10: authorized-50,000,000 shares; issued-none	0.0	0.0
Common stock, par value $0.10: authorized-500,000,000 shares; issued-126,695,171 shares at June 30, 2018 and December 31, 2017; outstanding-125,684,396 shares at June 30, 2018 and 125,857,197 shares at December 31, 2017	12.7	12.7
Additional paid-in capital	1,604.1	1,596.3
Retained earnings	1,330.4	1,184.3
Treasury stock: 1,010,775 shares at June 30, 2018 and 837,974 shares at December 31, 2017	(30.6)	(26.1)
Accumulated other comprehensive loss, net of tax	(991.6)	(1,027.8)
Total ATI stockholders’ equity	1,925.0	1,739.4
Noncontrolling interests
Noncontrolling interests	116.9	105.1
Total Equity	2,041.9	1,844.5
Total Liabilities and Equity	$ 5,393.3	$ 5,185.4