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Employee Benefits - Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]  
Fair value of plan assets at beginning of year $ 1,473
Fair value of plan assets at end of year 1,395
Level 3  
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]  
Fair value of plan assets at beginning of year 34
Distributions (34)
Fair value of plan assets at end of year $ 0