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Inventories | 9 Months Ended
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Sep. 30, 2017
Inventory Disclosure [Abstract] |
Inventories | Inventories Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value. Manufactured inventory cost includes materials, labor, and manufacturing overhead. Purchased inventory cost also includes internal purchasing overhead costs. Provisions are made to reduce excess and obsolete inventories to their estimated net realizable values. Inventory provisions are based on forecasted demand, past experience with specific customers, the age and nature of the inventory, and the ability to redistribute inventory to other programs or to rework into other consumable inventory. The components of inventories, net are as follows (in millions):
| September 30, 2017 |  | December 31, 2016
Raw material | $ | 111 |  |  | $ | 111 |
Work in process | 2 |  |  | 1 |
Finished goods | 379 |  |  | 233 |
Total | $ | 492 |  |  | $ | 345 |

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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