Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 1) -Obligations, Assets and Funded Status

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PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 1) -Obligations, Assets and Funded Status
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
country
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Amounts recognized in consolidated balance sheets      
Pension assets $ 1,001 $ 929  
Liability, Defined Benefit Pension Plan, Noncurrent 591 532  
Other Pension Plan      
Change in plan assets      
Employer contributions $ 15 11  
Less Significant Defined Benefit or Other Postretirement Plans Applicable to Number of Countries | country 14    
Maximum Percentage of Defined Benefit Plans Assets Included in Other Liabilities and Deferred Revenue 3.00%    
Maximum Percentage of Defined Benefit Plans, Obligations Included in Other Liabilities and Deferred Revenue 5.00%    
Other Postretirement Benefit Plan      
Change in benefit obligation      
Benefit obligation at the beginning of the year $ 246 318  
Interest cost 10 11 $ 14
Plan participants' contributions 14 21  
Actuarial loss (gain) 0 (51)  
Benefits paid directly by employer or from fund (43) (53)  
Benefit obligation at the end of the year $ 227 $ 246 318
Change in plan assets      
Less Significant Defined Benefit or Other Postretirement Plans Applicable to Number of Countries | country 4    
Maximum Percentage of Defined Benefit Plans, Obligations Included in Other Liabilities and Deferred Revenue 11.00% 9.00%  
Funded status      
Funded status at end of year $ (227) $ (246)  
Amounts recognized in consolidated balance sheets      
Accrued compensation, benefits and retirement costs (21) (22)  
Liability, Other Postretirement Defined Benefit Plan, Noncurrent 206 224  
Net amount recognized (227) (246)  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial gain (25) (24)  
Prior service cost (credit) (4) (4)  
Net amount recognized (29) (28)  
U.S. PENSION PLAN      
Change in benefit obligation      
Benefit obligation at the beginning of the year 2,562 2,765  
Service cost 116 120 107
Interest cost 108 98 106
Actuarial loss (gain) 296 (212)  
Benefits paid directly by employer or from fund (150) (193)  
Plan amendment 0 0  
Benefit obligation at the end of the year 2,916 2,562 2,765
Change in plan assets      
Fair value of plan assets at the beginning of the year 2,937 3,166  
Actual return on plan assets 493 (36)  
Employer contributions 77 0  
Benefits paid from Fund (150) (193)  
Exchange rate changes 0 0  
Fair value of plan assets at the end of the year 3,357 2,937 3,166
Funded status      
Funded status at end of year 441 375  
Amounts recognized in consolidated balance sheets      
Pension assets 842 697  
Accrued compensation, benefits and retirement costs (16) (14)  
Liability, Defined Benefit Pension Plan, Noncurrent 385 308  
Net amount recognized 441 375  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial gain 611 635  
Prior service cost (credit) 7 8  
Net amount recognized 618 643  
U.K. PENSION PLAN      
Change in benefit obligation      
Benefit obligation at the beginning of the year 1,550 1,662  
Service cost 26 29 26
Interest cost 43 41 40
Actuarial loss (gain) 232 (46)  
Benefits paid directly by employer or from fund (62) (62)  
Plan amendment 0 15 [1]  
Exchange rate changes 62 (89)  
Benefit obligation at the end of the year 1,851 1,550 1,662
Change in plan assets      
Fair value of plan assets at the beginning of the year 1,782 1,960  
Actual return on plan assets 193 (33)  
Employer contributions 28 21  
Benefits paid from Fund (62) (62)  
Exchange rate changes 69 (104)  
Fair value of plan assets at the end of the year 2,010 1,782 $ 1,960
Funded status      
Funded status at end of year 159 232  
Amounts recognized in consolidated balance sheets      
Pension assets 159 232  
Net amount recognized 159 232  
Amounts recognized in accumulated other comprehensive loss consist of:      
Net actuarial gain 323 230  
Prior service cost (credit) 22 16  
Net amount recognized 345 246  
Nonqualified Plan | U.S. PENSION PLAN      
Change in benefit obligation      
Benefits paid directly by employer or from fund $ (16) $ (16)  
[1] Guaranteed minimum pension benefits to equalize certain pension benefits between men and women per the U.K. court decision.