XML 77 R63.htm IDEA: XBRL DOCUMENT v3.21.1
Pensions and Other Postretirement Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]    
Non-service cost components of net periodic pension and OPEB income $ 483 $ 338
Global OPEB Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]    
Service cost 4 5
Interest cost 31 43
Expected return on plan assets 0 0
Amortization of prior service cost (credit) (2) (2)
Amortization of net actuarial losses 25 19
Net periodic pension and OPEB (income) expense 58 65
U.S. | Pension Plan    
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]    
Service cost 65 62
Interest cost 269 429
Expected return on plan assets (795) (816)
Amortization of prior service cost (credit) (1) (1)
Amortization of net actuarial losses 7 4
Net periodic pension and OPEB (income) expense (455) (322)
Non-U.S. | Pension Plan    
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]    
Service cost 38 29
Interest cost 59 91
Expected return on plan assets (152) (170)
Amortization of prior service cost (credit) 1 2
Amortization of net actuarial losses 54 42
Net periodic pension and OPEB (income) expense $ 0 $ (6)