ACCOUNTS, NOTES AND OTHER RECEIVABLES (Details) - USD ($) $ in Millions |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Accounts Receivable, Net Current [Abstract] | ||
| Trade | $ 8,333 | $ 7,901 |
| Other | 583 | 436 |
| Accounts receivable, Gross | 8,916 | 8,337 |
| Less - Allowance for doubtful accounts | (289) | (262) |
| Accounts receivable, Net | 8,627 | 8,075 |
| Accounts Notes, And Other Receivables Paragraph Details [Abstract] | ||
| Unbilled contract receivable | $ 1,642 | $ 1,590 |