CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 159.8	$ 229.6
Accounts receivable, net	504.6	452.1
Inventories, net	1,051.9	1,037.0
Prepaid expenses and other current assets	46.3	47.8
Total current assets	1,762.6	1,766.5
Property, plant and equipment, net	2,495.8	2,498.9
Goodwill	642.6	641.9
Other assets	253.4	262.7
Total assets	5,154.4	5,170.0
Current Liabilities:
Accounts payable	346.4	294.3
Accrued liabilities	276.4	309.3
Short-term debt and current portion of long-term debt	172.8	105.1
Total current liabilities	795.6	708.7
Long-term debt	1,772.5	1,771.9
Accrued postretirement benefits	313.2	317.7
Pension liabilities	687.8	827.9
Deferred income taxes	13.0	15.6
Other long-term liabilities	82.9	83.4
Total liabilities	3,665.0	3,725.2
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-109,695,171 shares at March 31, 2017 and December 31, 2016; outstanding-108,824,990 shares at March 31, 2017 and 108,925,254 shares at December 31, 2016	11.0	11.0
Additional paid-in capital	1,187.1	1,188.8
Retained earnings	1,294.6	1,277.1
Treasury stock: 870,181 shares at March 31, 2017 and 769,917 shares at December 31, 2016	(27.1)	(28.0)
Accumulated other comprehensive loss, net of tax	(1,071.4)	(1,093.7)
Total ATI stockholders’ equity	1,394.2	1,355.2
Noncontrolling interests
Noncontrolling interests	95.2	89.6
Total Equity	1,489.4	1,444.8
Total Liabilities and Equity	$ 5,154.4	$ 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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Namespace Prefix:	us-gaap_
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.