Goodwill and Other Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Goodwill and Other Intangible Assets | ||||
| Impairment charge | $ 0 | $ 25 | $ 0 | $ 25 |
| Minimum [Member] | ||||
| Goodwill and Other Intangible Assets | ||||
| Useful life | 5 years | |||
| Maximum [Member] | ||||
| Goodwill and Other Intangible Assets | ||||
| Useful life | 20 years | |||
| Continuing Operations [Member] | ||||
| Goodwill and Other Intangible Assets | ||||
| Aggregate pre-tax amortization expense | $ 1 | 1 | $ 2 | 3 |
| Chemical Solutions [Member] | ||||
| Goodwill and Other Intangible Assets | ||||
| Impairment charge | $ 25 | $ 25 | ||