XML 102 R81.htm IDEA: XBRL DOCUMENT v3.25.0.1
Share-based Compensation and Employee Benefits - Benefit Obligation, Plan Assets and Funded Status (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension Benefits      
Change in benefit obligation:      
Benefit obligation at beginning of period $ 1,902 $ 2,077  
Service cost 52 55 $ 55
Interest cost 91 107 57
Actuarial (gain) loss (82) 14  
Benefits paid (154) (132)  
Participant contributions 0 0  
Settlements 0 (219)  
Other 0 0  
Benefit obligation at end of period 1,809 1,902 2,077
Change in plan assets:      
Fair value of plan assets at beginning of period 1,562 1,741  
Actual return on plan assets 156 122  
Employer contributions 50 50  
Participant contributions 0 0  
Benefits paid (154) (132)  
Settlements 0 (219)  
Other 0 0  
Fair value of plan assets at end of period 1,614 1,562 1,741
Funded status - net (liability) asset at December 31, (195) (340)  
Amounts recognized in the consolidated balance sheets:      
Non-current benefit asset(a) 0 0  
Current benefit liability 0 0  
Non-current benefit liability (195) (340)  
Funded status - net (liability) asset at December 31, (195) (340)  
Amounts of pre-tax accumulated other comprehensive (loss) income recognized in the consolidated balance sheets:      
Unrecognized net actuarial (loss) gain (230) (384)  
Unrecognized prior service credit 0 0  
Accumulated other comprehensive (loss) income (230) (384)  
Information related to plans whose accumulated benefit obligations exceeded the fair value of plan assets:      
Accumulated benefit obligation 1,782 1,870  
Fair value of plan assets 1,614 1,562  
OPEB      
Change in benefit obligation:      
Benefit obligation at beginning of period 177 195  
Service cost 1 1 1
Interest cost 8 10 5
Actuarial (gain) loss 8 (6)  
Benefits paid (26) (25)  
Participant contributions 1 1  
Settlements 0 0  
Other 0 1  
Benefit obligation at end of period 169 177 195
Change in plan assets:      
Fair value of plan assets at beginning of period 323 302  
Actual return on plan assets 33 44  
Employer contributions 0 0  
Participant contributions 1 1  
Benefits paid (26) (25)  
Settlements 0 0  
Other 0 1  
Fair value of plan assets at end of period 331 323 $ 302
Funded status - net (liability) asset at December 31, 162 146  
Amounts recognized in the consolidated balance sheets:      
Non-current benefit asset(a) 278 263  
Current benefit liability (14) (14)  
Non-current benefit liability (102) (103)  
Funded status - net (liability) asset at December 31, 162 146  
Amounts of pre-tax accumulated other comprehensive (loss) income recognized in the consolidated balance sheets:      
Unrecognized net actuarial (loss) gain 139 149  
Unrecognized prior service credit 2 3  
Accumulated other comprehensive (loss) income 141 152  
Information related to plans whose accumulated benefit obligations exceeded the fair value of plan assets:      
Accumulated benefit obligation 117 119  
Fair value of plan assets 2 2  
OPEB | Other Affiliates      
Amounts recognized in the consolidated balance sheets:      
Non-current benefit asset(a) $ 59 $ 53