Document and Entity Information |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
shares
| |
| Document Documentand Entity Information [Abstract] | |
| Document Type | 10-Q |
| Amendment Flag | false |
| Document Period End Date | Sep. 30, 2016 |
| Document Fiscal Year Focus | 2016 |
| Document Fiscal Period Focus | Q3 |
| Trading Symbol | PPG |
| Entity Registrant Name | PPG INDUSTRIES INC |
| Entity Central Index Key | 0000079879 |
| Current Fiscal Year End Date | --12-31 |
| Entity Filer Category | Large Accelerated Filer |
| Entity Common Stock, Shares Outstanding | 263,995,244 |