CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 472.5	$ 645.9
Accounts receivable, net	362.2	345.8
Short-term contract assets	52.3	38.9
Inventories, net	1,059.0	997.1
Prepaid expenses and other current assets	50.5	38.3
Total current assets	1,996.5	2,066.0
Property, plant and equipment, net	1,486.3	1,469.2
Goodwill	241.9	240.7
Other assets	249.3	259.0
Total assets	3,974.0	4,034.9
Current Liabilities:
Accounts payable	265.8	290.6
Short-term contract liabilities	103.8	111.8
Short-term debt and current portion of long-term debt	19.3	17.8
Other current liabilities	210.2	233.1
Total current liabilities	599.1	653.3
Long-term debt	1,602.2	1,550.0
Accrued postretirement benefits	317.1	326.7
Pension liabilities	629.4	673.6
Other long-term liabilities	220.1	189.9
Total liabilities	3,367.9	3,393.5
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-127,471,322 shares at June 30, 2021 and 126,820,440 shares at December 31, 2020; outstanding-127,243,908 shares at June 30, 2021 and 126,817,768 shares at December 31, 2020	12.7	12.7
Additional paid-in capital	1,587.5	1,625.5
Retained earnings	53.8	106.5
Treasury stock: 227,414 shares at June 30, 2021 and 2,672 shares at December 31, 2020	(4.7)	0.0
Accumulated other comprehensive loss, net of tax	(1,176.3)	(1,223.6)
Total ATI stockholders’ equity	473.0	521.1
Noncontrolling interests
Noncontrolling interests	133.1	120.3
Total Equity	606.1	641.4
Total Liabilities and Equity	$ 3,974.0	$ 4,034.9