Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 141.6	$ 229.6
Accounts receivable, net	545.3	452.1
Inventories, net	1,176.1	1,037.0
Prepaid expenses and other current assets	52.7	47.8
Total Current Assets	1,915.7	1,766.5
Property, plant and equipment, net	2,495.7	2,498.9
Goodwill	531.4	641.9
Other assets	242.6	262.7
Total Assets	5,185.4	5,170.0
Liabilities and Stockholders’ Equity
Accounts payable	420.1	294.3
Accrued liabilities	282.4	309.3
Short-term debt and current portion of long-term debt	10.1	105.1
Total Current Liabilities	712.6	708.7
Long-term debt	1,530.6	1,771.9
Accrued postretirement benefits	317.8	317.7
Pension liabilities	697.0	827.9
Deferred income taxes	9.7	15.6
Other long-term liabilities	73.2	83.4
Total Liabilities	3,340.9	3,725.2
Redeemable noncontrolling interest	0.0
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 December 31, 2017 and 109,695,171 shares at December 31, 2016; outstanding-125,857,197 shares at December 31, 2017 and 108,925,254 shares at December 31, 2016	12.7	11.0
Additional paid-in capital	1,596.3	1,188.8
Retained earnings	1,184.3	1,277.1
Treasury stock: 837,974 shares at December 31, 2017 and 769,917 shares at December 31, 2016	(26.1)	(28.0)
Accumulated other comprehensive loss, net of tax	(1,027.8)	(1,093.7)
Total ATI Stockholders’ Equity	1,739.4	1,355.2
Noncontrolling interests
Noncontrolling Interests	105.1	89.6
Total Stockholders’ Equity	1,844.5	1,444.8
Total Liabilities and Stockholders’ Equity	$ 5,185.4	$ 5,170.0

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.