|
Inventories (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Productive material | $ 629 | $ 562 |
| Work-in-process | 86 | 104 |
| Finished goods | 366 | 347 |
| Total | $ 1,081 | $ 1,013 |