CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 432.9	$ 584.0
Accounts receivable, net	683.0	579.2
Short-term contract assets	56.6	64.1
Inventories, net	1,353.9	1,195.7
Prepaid expenses and other current assets	73.3	53.4
Total current assets	2,599.7	2,476.4
Property, plant and equipment, net	1,626.3	1,549.1
Goodwill	227.2	227.2
Other assets	277.9	192.9
Total assets	4,731.1	4,445.6
Current Liabilities:
Accounts payable	435.0	553.3
Short-term contract liabilities	110.2	149.1
Short-term debt and current portion of long-term debt	37.5	41.7
Other current liabilities	246.6	219.8
Total current liabilities	829.3	963.9
Long-term debt	2,147.7	1,706.3
Accrued postretirement benefits	173.2	184.9
Pension liabilities	39.7	225.6
Other long-term liabilities	185.3	207.7
Total liabilities	3,375.2	3,288.4
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-132,292,666 shares at September 30, 2023 and 131,392,262 shares at December 31, 2022; outstanding-127,576,395 shares at September 30, 2023 and 128,273,042 shares at December 31, 2022	13.2	13.1
Additional paid-in capital	1,689.5	1,668.1
Retained earnings	398.7	176.9
Treasury stock: 4,716,271 shares at September 30, 2023 and 3,119,220 shares at December 31, 2022	(153.6)	(87.0)
Accumulated other comprehensive loss, net of tax	(708.9)	(725.2)
Total ATI stockholders’ equity	1,238.9	1,045.9
Noncontrolling interests
Noncontrolling interests	117.0	111.3
Total Equity	1,355.9	1,157.2
Total Liabilities and Equity	$ 4,731.1	$ 4,445.6