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Employee Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Cost 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 $$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 (7)(9)Miscellaneous, net
Amortization of prior service credit— — (23)(28)Miscellaneous, net
Total$27 $25 $(19)$(26)