Restructuring Charges Restructuring Roll Forward (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Restructuring Reserve [Roll Forward] | ||
| Restructuring Reserve | $ 0 | |
| Restructuring Charges | 129 | $ 54 |
| Payments for Restructuring | (62) | |
| Restructuring Reserve, Translation and Other Adjustment | (13) | |
| Restructuring Reserve | 54 | 0 |
| Employee Severance [Member] | ||
| Restructuring Reserve [Roll Forward] | ||
| Restructuring Reserve | 0 | |
| Restructuring Charges | 112 | |
| Payments for Restructuring | (59) | |
| Restructuring Reserve, Translation and Other Adjustment | 1 | |
| Restructuring Reserve | 54 | 0 |
| Other Restructuring [Member] | ||
| Restructuring Reserve [Roll Forward] | ||
| Restructuring Reserve | 0 | |
| Restructuring Charges | 17 | |
| Payments for Restructuring | (3) | |
| Restructuring Reserve, Translation and Other Adjustment | (14) | |
| Restructuring Reserve | $ 0 | $ 0 |