v3.23.1
Post-Employment Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Defined benefit plans    
Defined benefit and other post-employment plans    
Service cost $ 68 $ 116
Interest cost 107 74
Expected return on plan assets (180) (180)
Amortization of prior service cost (credit) 0 1
Amortization of actuarial loss 4 57
Net periodic benefit cost (1) 68
Other post-employment plans    
Defined benefit and other post-employment plans    
Service cost 8 12
Interest cost 9 6
Expected return on plan assets 0 0
Amortization of prior service cost (credit) (9) (10)
Amortization of actuarial loss 3 7
Net periodic benefit cost $ 11 $ 15