Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details)

v3.10.0.1
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Fair value of plan assets      
Defined Benefit Plan, Plan Assets, Business Combination $ 30 $ 0  
Pension benefits      
Defined Benefit Plan Disclosure      
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation 6,561 7,833  
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation 6,450 7,614  
Changes in benefit obligations      
Benefit obligation at January 1 9,455 9,428  
Service cost 124 197 $ 239
Interest cost 294 306 319
Foreign currency exchange rate changes (110) 150  
Amendments 1 1  
Actuarial loss (gain) (469) 420  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (356) (341)  
Defined Benefit Plan, Benefit Obligation, Business Combination 60 0  
Divestitures (11) (7)  
Defined Benefit Plan, Benefit Obligation, Payment for Settlement 932 832  
Net actuarial (loss) gain arising in the current year 389 (75)  
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment   10  
Special termination benefits 7 106 37
Other 4 37  
Benefit obligation at December 31 8,004 9,455 9,428
Fair value of plan assets      
Fair value of plan assets at January 1 8,843 8,371  
Actual return on plan assets (271) 1,139  
Employer contributions 107 181  
Foreign currency exchange rate changes (128) 196  
Benefits Paid (285) (285)  
Divestitures (1) 0  
Other 6 35  
Fair value of plan assets at December 31 7,409 8,843 8,371
Defined Benefit Plan, Plan Assets, Payment for Settlement 892 794  
Net liability recognized (595) (612)  
Accumulated benefit obligation for pension plans 7,856 9,175  
Defined Benefit Plan, Plan Assets, Benefits Paid 71 56  
Pension and other benefit amounts recognized in our consolidated balance sheets      
Noncurrent asset 803 921  
Current liability (70) (72)  
Long-term liability (1,328) (1,461)  
Net liability recognized (595) (612)  
Accumulated benefit obligations in excess of the fair value of plan assets      
Fair value of plan assets 5,157 6,305  
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets 5,163 6,330  
Other benefits      
Changes in benefit obligations      
Benefit obligation at January 1 782 962  
Service cost 11 17 22
Interest cost 23 29 31
Foreign currency exchange rate changes (5) 4  
Amendments (8) (21)  
Actuarial loss (gain) (33) (28)  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (70) (71)  
Defined Benefit Plan, Benefit Obligation, Business Combination 1 0  
Divestitures 0 (66)  
Defined Benefit Plan, Benefit Obligation, Payment for Settlement 0 0  
Net actuarial (loss) gain arising in the current year (15) (92)  
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment 0 48  
Special termination benefits 0 0 1
Other 7 4  
Benefit obligation at December 31 708 782 962
Fair value of plan assets      
Fair value of plan assets at January 1 288 255  
Actual return on plan assets (5) 31  
Employer contributions 0 0  
Foreign currency exchange rate changes 0 0  
Benefits Paid (3) (3)  
Divestitures 0 0  
Other 9 5  
Fair value of plan assets at December 31 289 288 $ 255
Defined Benefit Plan, Plan Assets, Payment for Settlement 0 0  
Net liability recognized (419) (494)  
Defined Benefit Plan, Plan Assets, Benefits Paid 67 68  
Pension and other benefit amounts recognized in our consolidated balance sheets      
Noncurrent asset 0 0  
Current liability (21) (21)  
Long-term liability (398) (473)  
Net liability recognized $ (419) (494)  
United States      
Defined Benefit Plan Disclosure      
Portion of projected pension benefit obligation represented by the defined benefit plan (as a percent) 62.00%    
Fair value of plan assets      
Fair value of plan assets at January 1 $ 6,028    
Fair value of plan assets at December 31 $ 4,842 $ 6,028