Disposals (Details) - Backcountry - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2015 |
Jun. 30, 2015 |
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Revenue | $ 105 | $ 227 | |
| Consideration from sale of business | $ 350 | ||
| Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | $ 105 | ||
| Disposal Group Net Earnings (Loss) | $ 4 | $ 3 |