ACCOUNTS RECEIVABLE |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivable, Net Current [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivables | Note 5. Accounts Receivable
Trade receivables include $1,728 million and $1,626 million of unbilled balances under long-term contracts as of June 30, 2017 and December 31, 2016. These amounts are billed in accordance with the terms of the customer contracts to which they relate. |