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CONSOLIDATED STATEMENTS OF EARNINGS - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Statement [Abstract]      
NET SALES $ 9,677 $ 9,761 $ 8,498
COST OF SALES 6,994 7,145 6,281
Gross margin 2,683 2,616 2,217 Close
OPERATING EXPENSES      
Marketing and administrative expenses 831 803 757
Science and technology expenses 123 106 91
Gain on sale of site (189) 0 0
Gain on equity method investment 0 (130) 0
Other expense (income), net 106 123 (69)
Total operating expenses 871 902 779 Close
OPERATING INCOME 1,812 1,714 1,438 Close
Non-operating expense (income), net 145 (9) (10) Close
Total Other Income Expenses 145.0 -9.0 -10.0 0 0 Close
EARNINGS BEFORE INTEREST AND TAXES 1,667 1,723 1,448 CloseClose
Interest expense, net 76 109 126
Loss on extinguishment of debt 0 0 9
EARNINGS BEFORE TAXES 1,591 1,614 1,313
Income tax expense 401 373 319 Close
Equity in net earnings of affiliates 3 0 1 Close
NET EARNINGS 1,193 1,241 995 Close
Net loss attributable to non-redeemable and redeemable noncontrolling interests (3) 0 0
NET EARNINGS ATTRIBUTABLE TO OWENS CORNING $ 1,196 $ 1,241 $ 995
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO OWENS CORNING COMMON STOCKHOLDERS      
Basic (dollars per share) $ 13.27 $ 12.85 $ 9.61
Diluted (dollars per share) $ 13.14 $ 12.70 $ 9.54
WEIGHTED AVERAGE COMMON SHARES      
Basic (in shares) 90.1 96.6 103.5
Diluted (in shares) 91.0 97.7 104.3