PENSION BENEFITS (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Percentage of fixed income assets to total Pension Plan assets | 50.00% | |||
| United States, Defined Benefit [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Service cost | $ 35,000,000 | $ 43,000,000 | $ 70,000,000 | $ 86,000,000 |
| Interest cost | 144,000,000 | 146,000,000 | 287,000,000 | 293,000,000 |
| Expected return on plan assets | (357,000,000) | (315,000,000) | (714,000,000) | (630,000,000) |
| Amortization of prior service (credit) | (11,000,000) | (11,000,000) | (22,000,000) | (22,000,000) |
| Net periodic benefit (income) | (189,000,000) | (137,000,000) | (379,000,000) | (273,000,000) |
| Non-US, Defined Benefit [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Service cost | 7,000,000 | 10,000,000 | 14,000,000 | 19,000,000 |
| Interest cost | 36,000,000 | 37,000,000 | 73,000,000 | 72,000,000 |
| Expected return on plan assets | (114,000,000) | (102,000,000) | (228,000,000) | (201,000,000) |
| Amortization of prior service (credit) | 0 | 0 | (1,000,000) | 0 |
| Net periodic benefit (income) | $ (71,000,000) | $ (55,000,000) | $ (142,000,000) | $ (110,000,000) |