Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill) (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2017
USD ($)
| |
| Goodwill [Roll Forward] | |
| Beginning Balance | $ 3,572 |
| Acquisitions | 34 |
| Currency | 239 |
| Ending Balance | 3,845 |
| Performance Coatings [Member] | |
| Goodwill [Roll Forward] | |
| Beginning Balance | 2,870 |
| Acquisitions | 24 |
| Currency | 207 |
| Ending Balance | 3,101 |
| Industrial Coatings [Member] | |
| Goodwill [Roll Forward] | |
| Beginning Balance | 702 |
| Acquisitions | 10 |
| Currency | 32 |
| Ending Balance | $ 744 |