Quarterly report pursuant to Section 13 or 15(d)

EMPLOYEE BENEFIT PLANS - Net Periodic Benefit Cost for Pension and Postretirement Benefit Plans (Detail)

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EMPLOYEE BENEFIT PLANS - Net Periodic Benefit Cost for Pension and Postretirement Benefit Plans (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Defined Benefit Pension Plan | U.S. Pension Benefits    
Net Periodic Cost:    
Service cost $ 506 $ 553
Interest cost 488 488
Expected return on assets (820) (846)
Amortization of prior service cost 23 33
Actuarial (gain) loss 0 (3,290)
Settlement and curtailment (gain) loss 0 0
Net periodic benefit (income) cost 197 (3,062)
Defined Benefit Pension Plan | International Pension Benefits    
Net Periodic Cost:    
Service cost 18 19
Interest cost 12 10
Expected return on assets (20) (17)
Amortization of prior service cost 0 0
Actuarial (gain) loss 0 0
Settlement and curtailment (gain) loss (33) 0
Net periodic benefit (income) cost (23) 12
U.S. Postretirement Medical Benefits | U.S. Pension Benefits    
Net Periodic Cost:    
Service cost 8 7
Interest cost 20 19
Expected return on assets (1) (2)
Amortization of prior service cost 0 2
Actuarial (gain) loss 0 0
Settlement and curtailment (gain) loss 0 0
Net periodic benefit (income) cost $ 27 $ 26