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Other Income (Tables)
 9 Months Ended
Sep. 30, 2022
Other Income and Expenses [Abstract]  
Schedule of Other Income
Three Months Ended
September 30		Nine Months Ended
September 30
($ in millions)2022202120222021
Gain on sale of assets(a)
$2 $34 $7 $38 
Foreign currency gain, net— 4 27 14 
Share of net earnings of equity affiliates6 4 20 9 
Income from legal settlements— — — 22 
Other, net7 14 8 35 
   Total Other income, net$15 $56 $62 $118 
(a)In the third quarter 2021, PPG recognized a $34 million gain on the sale of a production facility in connection with the Company’s manufacturing footprint consolidation plans and associated restructuring programs.