XML 63 R50.htm IDEA: XBRL DOCUMENT v3.21.1
Employee Benefits - Costs (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Pension Benefits    
Net Periodic Benefit Cost    
Net Periodic Other Benefit Costs $ 478 $ 242
Pension Benefits | United States    
Net Periodic Benefit Cost    
Service cost 117 124
Interest cost 55 88
Expected return on plan assets (149) (162)
Amortization of prior service costs (credits) 1 1
Amortization of actuarial losses (gains) 104 96
Settlement losses 317 60
Net Periodic Other Benefit Costs 445 207
Pension Benefits | International    
Net Periodic Benefit Cost    
Service cost 34 32
Interest cost 33 43
Expected return on plan assets (46) (52)
Amortization of prior service costs (credits) 2 2
Amortization of actuarial losses (gains) 10 10
Settlement losses 0 0
Net Periodic Other Benefit Costs 33 35
Other Benefits    
Net Periodic Benefit Cost    
Service cost 11 9
Interest cost 13 18
Amortization of prior service costs (credits) (7) (6)
Amortization of actuarial losses (gains) 4 0
Net Periodic Other Benefit Costs $ 21 $ 21