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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ACCUMULATED OTHER COMPREHENSIVE INCOME
Components of accumulated other comprehensive income include the following:
 As of December 31,
 202320222021
 (In millions)
Pension and postretirement benefit plan (Note 13)
$15 $14 $22 
Accumulated other comprehensive income$15 $14 $22