XML 135 R110.htm IDEA: XBRL DOCUMENT v3.25.0.1
Employee Benefit Plans (Reconciliations of Plan assets and the Projected Benefit Obligation, the Weighted-Average Assumptions Used to Determine Year-End Benefit Obligations, and the Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Fair value of plan assets at January 1 $ 2,665,000,000    
Fair value of plan assets at December 31 2,714,000,000 $ 2,665,000,000  
Amortization of prior service credit (22,000,000) (23,000,000) $ (23,000,000)
Qualified Plan      
Fair value of plan assets at January 1 2,681,000,000 2,508,000,000  
Actual return on plan assets 164,000,000 338,000,000 (777,000,000)
Benefits paid (114,000,000) (165,000,000)  
Fair value of plan assets at December 31 2,731,000,000 2,681,000,000 2,508,000,000
Projected benefit obligation at January 1 1,629,000,000 1,611,000,000  
Service cost 35,000,000 31,000,000 37,000,000
Interest cost 82,000,000 85,000,000 62,000,000
Actuarial loss (gain) (51,000,000) 67,000,000  
Projected benefit obligation at December 31 1,581,000,000 1,629,000,000 1,611,000,000
Accumulated benefit obligation 1,563,000,000 1,611,000,000  
Funded Status at December 31 [1],[2] $ 1,150,000,000 $ 1,052,000,000  
Weighted-average assumptions, discount rate, percent 5.72% 5.33%  
Weighted-average assumptions, rate of compensation increase, percent 4.50% 4.50%  
Accumulated other comprehensive income (loss), net actuarial loss $ (443,000,000) $ (501,000,000)  
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax 5,000,000    
Amortization of prior service credit (15,000,000) 19,000,000  
Balance at December 31 $ (438,000,000) $ (482,000,000)  
Qualified Plan | Minimum      
Weighted-average assumptions, interest credit rating 454.00% 466.00%  
Qualified Plan | Maximum      
Weighted-average assumptions, interest credit rating 525.00% 525.00%  
Non-Qualified Plan      
Fair value of plan assets at January 1 $ 0 $ 0  
Actual return on plan assets 0 0  
Benefits paid (15,000,000) (15,000,000)  
Fair value of plan assets at December 31 0 0 0
Projected benefit obligation at January 1 169,000,000 163,000,000  
Service cost 2,000,000 2,000,000 2,000,000
Interest cost 9,000,000 9,000,000 6,000,000
Actuarial loss (gain) 0 10,000,000  
Projected benefit obligation at December 31 165,000,000 169,000,000 163,000,000
Accumulated benefit obligation 162,000,000 166,000,000  
Funded Status at December 31 [1],[2] $ (165,000,000) $ (169,000,000)  
Weighted-average assumptions, discount rate, percent 5.72% 5.33%  
Weighted-average assumptions, rate of compensation increase, percent 4.50% 4.50%  
Accumulated other comprehensive income (loss), net actuarial loss $ (49,000,000) $ (52,000,000)  
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax 23,000,000    
Amortization of prior service credit (7,000,000) 29,000,000  
Balance at December 31 $ (26,000,000) $ (23,000,000)  
Non-Qualified Plan | Minimum      
Weighted-average assumptions, interest credit rating 454.00% 466.00%  
Non-Qualified Plan | Maximum      
Weighted-average assumptions, interest credit rating 525.00% 525.00%  
Postretirement Benefit Plan      
Fair value of plan assets at January 1 $ 45,000,000 $ 46,000,000  
Actual return on plan assets 0 1,000,000 (4,000,000)
Benefits paid (2,000,000) (2,000,000)  
Fair value of plan assets at December 31 43,000,000 45,000,000 46,000,000
Projected benefit obligation at January 1 17,000,000 21,000,000  
Service cost 0 0  
Interest cost 1,000,000 1,000,000 1,000,000
Actuarial loss (gain) (1,000,000) (3,000,000)  
Projected benefit obligation at December 31 15,000,000 17,000,000 $ 21,000,000
Accumulated benefit obligation 15,000,000 17,000,000  
Funded Status at December 31 [1],[2] $ 28,000,000 $ 28,000,000  
Weighted-average assumptions, discount rate, percent 5.72% 5.43%  
Accumulated other comprehensive income (loss), net actuarial loss $ (10,000,000) $ (9,000,000)  
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax 2,000,000    
Amortization of prior service credit 0 2,000,000  
Balance at December 31 $ (8,000,000) $ (7,000,000)  
[1] Based on projected benefit obligation for defined benefit pension plans and accumulated benefit obligation for postretirement benefit plan.
[2] The Corporation recognizes the overfunded and underfunded status of the plans in accrued income and other assets and accrued expenses and other liabilities, respectively, on the Consolidated Balance Sheets.
n/a - not applicable