CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 188.4	$ 149.8
Accounts receivable, net	454.0	400.3
Inventories, net	1,078.9	1,271.6
Prepaid expenses and other current assets	40.8	45.9
Total current assets	1,762.1	1,867.6
Property, plant and equipment, net	2,514.4	2,928.2
Goodwill	644.4	651.4
Other assets	271.4	304.5
Total assets	5,192.3	5,751.7
Current Liabilities:
Accounts payable	285.2	380.8
Accrued liabilities	310.9	301.8
Short-term debt and current portion of long-term debt	5.4	3.9
Total current liabilities	601.5	686.5
Long-term debt	1,870.4	1,491.8
Accrued postretirement benefits	311.6	359.2
Pension liabilities	708.6	833.8
Deferred income taxes	51.3	75.6
Other long-term liabilities	86.2	108.3
Total liabilities	3,629.6	3,555.2
Redeemable noncontrolling interest	0.0	12.1
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 September 30, 2016 and December 31, 2015; outstanding-108,927,240 shares at September 30, 2016 and 109,174,882 shares at December 31, 2015	11.0	11.0
Additional paid-in capital	1,183.3	1,161.7
Retained earnings	1,267.1	1,945.9
Treasury stock: 767,931 shares at September 30, 2016 and 520,289 shares at December 31, 2015	(27.9)	(21.3)
Accumulated other comprehensive loss, net of tax	(961.7)	(1,014.5)
Total ATI stockholders’ equity	1,471.8	2,082.8
Noncontrolling interests
Noncontrolling interests	90.9	101.6
Total Equity	1,562.7	2,184.4
Total Liabilities and Equity	$ 5,192.3	$ 5,751.7

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.