Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 2)

v3.8.0.1
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 2) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets $ 8,843 $ 8,371 $ 7,689
Defined Benefit Plan, Plan Assets, Benefits Paid 56 76  
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 288 255 $ 245
Defined Benefit Plan, Plan Assets, Benefits Paid 68 61  
Cash and cash equivalents | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 691 402  
Cash and cash equivalents | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 78 2  
Equity securities U.S.-based companies | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 2,097 1,827  
Equity securities U.S.-based companies | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 96 116  
Equity securities International-based companies | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 1,465 939  
Equity securities International-based companies | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 8 8  
Government bonds | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 374 526  
Government bonds | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 2 3  
Corporate bonds and debt securities | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 827 996  
Corporate bonds and debt securities | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 7 6  
Mutual, pooled and commingled funds | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 981 1,133  
Mutual, pooled and commingled funds | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 80 103  
Hedge funds/limited partnerships | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 983 1,213  
Hedge funds/limited partnerships | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 8 9  
Real estate | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 598 523  
Real estate | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 5 4  
Other | Pension benefits      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 827 812  
Other | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 4 4  
United States      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 6,028 6,061  
United States | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 454 229  
United States | Equity securities U.S.-based companies      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 1,427 1,208  
United States | Equity securities International-based companies      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 911 451  
United States | Government bonds      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 183 395  
United States | Corporate bonds and debt securities      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 785 854  
United States | Mutual, pooled and commingled funds      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 215 693  
United States | Hedge funds/limited partnerships      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 939 1,172  
United States | Real estate      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 596 521  
United States | Other      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 518 538  
Non-US [Member]      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 2,815 2,310  
Non-US [Member] | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 237 173  
Non-US [Member] | Equity securities U.S.-based companies      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 670 619  
Non-US [Member] | Equity securities International-based companies      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 554 488  
Non-US [Member] | Government bonds      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 191 131  
Non-US [Member] | Corporate bonds and debt securities      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 42 142  
Non-US [Member] | Mutual, pooled and commingled funds      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 766 440  
Non-US [Member] | Hedge funds/limited partnerships      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 44 41  
Non-US [Member] | Real estate      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets 2 2  
Non-US [Member] | Other      
Defined Benefit Plan Disclosure      
Fair Value of Plan Assets $ 309 $ 274