Income Taxes (Income Tax Expense (Benefit)) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Tax Disclosure [Abstract] | |||
| U.S. | $ 116 | $ 133 | $ 942 |
| International | 24 | 26 | 26 |
| Total | $ 140 | $ 159 | $ 968 |
| X | ||||||||||
- Definition Income (loss) before income taxes and discontinued operations with noncontrolling interest No definition available.
|
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|