Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Net periodic benefit cost for pension and other postretirement benefit plans (Details)

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Net periodic benefit cost for pension and other postretirement benefit plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Net periodic pension and other postretirement benefit cost      
Corridor Approach for Amortizing Actuarial Gains and Losses 10.00%    
Pension benefits      
Net periodic pension and other postretirement benefit cost      
Service cost $ 93 $ 97 $ 112
Interest cost 232 183 235
Expected Return on Plan Assets (558) (606) (587)
Amortization of prior service cost (credit) 0 0 3
Amortization of net actuarial loss 109 146 171
Net periodic benefit cost (income) (124) (180) (66)
Settlement charge (credits) (1) 117 23
Curtailment charges (credits) (1) (1) 1
Special termination benefits 1 3 2
Other 1 0 (4)
Total cost (income) recognized in the statement of income (124) (61) (44)
Other benefits      
Net periodic pension and other postretirement benefit cost      
Service cost 7 9 11
Interest cost 17 15 21
Expected Return on Plan Assets (16) (17) (16)
Amortization of prior service cost (credit) (3) (2) (3)
Amortization of net actuarial loss 0 4 5
Net periodic benefit cost (income) 5 9 18
Settlement charge (credits) 0 0 0
Curtailment charges (credits) 0 (1) 6
Special termination benefits 0 0 0
Other 0 0 0
Total cost (income) recognized in the statement of income $ 5 $ 8 $ 24