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PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS - Information Relating to Individual Plans in Funded Status Table that have PBO in Excess of Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Information relating to the individual plans in the funded status table above that have a PBO in excess of plan assets    
PBO $ 2,796 $ 2,740
Fair value of plan assets $ 1,982 $ 2,006