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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Earnings Per Share [Abstract]      
Net earnings (loss) attributable to Owens Corning $ 1,241 $ 995 $ (383)
Weighted-average number of shares outstanding used for basic earnings (loss) per share 96.6 103.5 108.6
Non-vested restricted and performance shares 1.1 0.8 0.0
Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings (loss) per share 97.7 104.3 108.6
Basic (dollars per share) $ 12.85 $ 9.61 $ (3.53)
Diluted (dollars per share) $ 12.70 $ 9.54 $ (3.53)