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Contingencies (Shareholder Class Action and Shareholder Derivative Lawsuits) (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
May 31, 2023
Apr. 30, 2023
Oct. 31, 2022
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2021
Loss Contingencies [Line Items]                
Loss contingency accrual       $ 71 $ 96 $ 346   $ 91
Federal And State Shareholder Derivative Lawsuits [Member]                
Loss Contingencies [Line Items]                
Loss contingency, settlement funding amount     $ 100          
Loss contingency, settlement funding period 5 years              
Provision related to litigation recorded       $ 27        
Loss contingency accrual             $ 100  
Judgments paid (approximately)   $ 15