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Employee Benefit Plans
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS
Defined Benefit Pension and Other Postretirement Benefit Plans. The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):
Pension BenefitsOther Postretirement BenefitsAffected Line Item
in the Statements of
 Consolidated Operations
2024202320242023
Service cost$34 $31 $1 $1 Salaries and related costs
Interest cost57 55 10 10 Miscellaneous, net
Expected return on plan assets(69)(63)— — Miscellaneous, net
Amortization of unrecognized (gain) loss 5 2 (7)(9)Miscellaneous, net
Amortization of prior service credit— — (23)(28)Miscellaneous, net
Total$27 $25 $(19)$(26)