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Employee Pension And Other Postretirement Benefits
 3 Months Ended
Mar. 31, 2026
Retirement Benefits [Abstract]  
Employee Pension and Other Postretirement Benefits EMPLOYEE PENSION AND OTHER POSTRETIREMENT BENEFITS
The Company provides eligible employees defined benefit pension plans, defined contribution benefit plans, and other postretirement benefit plans.

The costs of the Company's defined benefit pension plans and other postretirement benefit plans for the three months ended March 31, 2026 and 2025, were as follows:
 Three Months Ended March 31
Pension BenefitsOther Benefits
($ in millions)2026202520262025
Components of net periodic benefit cost
Service cost$21 $22 $1 $1 
Interest cost85 84 4 4 
Expected return on plan assets(144)(137)— — 
Amortization of prior service cost (credit)4 4 — — 
Amortization of net actuarial loss (gain)1 — (3)(3)
Net periodic benefit (income) cost$(33)$(27)$2 $2 

The Company made the following contributions to its defined benefit pension plans and other postretirement benefit plans for the three months ended March 31, 2026 and 2025:
 Three Months Ended March 31
($ in millions)20262025
Pension plans
Discretionary
Qualified$1 $— 
Non-qualified3 4 
Other benefit plans10 9 
Total contributions$14 $13 

For the year ending December 31, 2026, the Company expects its cash contributions to its qualified defined benefit pension plans to be approximately $2 million, all of which will be discretionary.