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Employee Benefit Plans (Schedule of Defined Benefit Plans Disclosures) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Change in Benefit Obligation [Roll Forward]      
Projected Benefit Obligation, Beginning of Period $ 2,437,000,000 $ 2,623,000,000  
Service cost 36,000,000 41,000,000 $ 39,000,000
Interest cost 59,000,000 51,000,000 68,000,000
Actuarial Gains (Losses) (585,000,000) (73,000,000)  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (116,000,000) (173,000,000)  
Administration Expenses (3,000,000) (3,000,000)  
Plan Settlements (78,000,000) (29,000,000)  
Projected Benefit Obligation, End of Period 1,750,000,000 2,437,000,000 2,623,000,000
Change in Plan Assets [Roll Forward]      
Fair Value of Plan Assets, beginning of period 2,554,000,000 2,469,000,000  
Actual Return on Plan Assets 404,000,000 (253,000,000)  
Company Contributions 17,000,000 37,000,000  
Defined Benefit Plan, Plan Assets, Benefits Paid (116,000,000) (173,000,000)  
Administration Expenses (3,000,000) (3,000,000)  
Plan Settlements (78,000,000) (29,000,000)  
Fair Value of Plan Assets, end of period 1,970,000,000 2,554,000,000 2,469,000,000
Funded Status and Accrued Benefit Cost at Measurement Date 220,000,000 117,000,000  
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 220,000,000 117,000,000  
Pre-tax amounts recognized in Accumulated Other Comprehensive (Income) Loss:      
Net actuarial loss 573,000,000 652,000,000  
Qualified Plan [Member] | Pension Plan [Member]      
Change in Benefit Obligation [Roll Forward]      
Projected Benefit Obligation, Beginning of Period 2,281,000,000 2,435,000,000  
Service cost 34,000,000 38,000,000 34,000,000
Interest cost 56,000,000 49,000,000 64,000,000
Actuarial Gains (Losses) (568,000,000) (73,000,000)  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (108,000,000) (165,000,000)  
Administration Expenses (3,000,000) (3,000,000)  
Plan Settlements (69,000,000) 0  
Projected Benefit Obligation, End of Period 1,623,000,000 2,281,000,000 2,435,000,000
Change in Plan Assets [Roll Forward]      
Fair Value of Plan Assets, beginning of period 2,554,000,000 2,469,000,000  
Actual Return on Plan Assets 404,000,000 (253,000,000)  
Company Contributions 0 0  
Defined Benefit Plan, Plan Assets, Benefits Paid (108,000,000) (165,000,000)  
Administration Expenses (3,000,000) (3,000,000)  
Plan Settlements (69,000,000) 0  
Fair Value of Plan Assets, end of period 1,970,000,000 2,554,000,000 2,469,000,000
Funded Status and Accrued Benefit Cost at Measurement Date 347,000,000 273,000,000  
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 347,000,000 273,000,000  
Pre-tax amounts recognized in Accumulated Other Comprehensive (Income) Loss:      
Net actuarial loss 537,000,000 590,000,000  
Nonqualified Plan [Member] | Supplemental Employee Retirement Plan [Member]      
Change in Benefit Obligation [Roll Forward]      
Projected Benefit Obligation, Beginning of Period 156,000,000 188,000,000  
Service cost 2,000,000 3,000,000 5,000,000
Interest cost 3,000,000 2,000,000 4,000,000
Actuarial Gains (Losses) (17,000,000) 0  
Defined Benefit Plan, Benefit Obligation, Benefits Paid (8,000,000) (8,000,000)  
Administration Expenses 0 0  
Plan Settlements (9,000,000) (29,000,000)  
Projected Benefit Obligation, End of Period 127,000,000 156,000,000 188,000,000
Change in Plan Assets [Roll Forward]      
Fair Value of Plan Assets, beginning of period 0 0  
Actual Return on Plan Assets 0 0  
Company Contributions 17,000,000 37,000,000  
Defined Benefit Plan, Plan Assets, Benefits Paid (8,000,000) (8,000,000)  
Administration Expenses 0 0  
Plan Settlements (9,000,000) (29,000,000)  
Fair Value of Plan Assets, end of period 0 0 $ 0
Funded Status and Accrued Benefit Cost at Measurement Date (127,000,000) (156,000,000)  
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) (127,000,000) (156,000,000)  
Pre-tax amounts recognized in Accumulated Other Comprehensive (Income) Loss:      
Net actuarial loss 36,000,000 62,000,000  
Other Assets [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 347,000,000 273,000,000  
Other Assets [Member] | Qualified Plan [Member] | Pension Plan [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 347,000,000 273,000,000  
Other Assets [Member] | Nonqualified Plan [Member] | Supplemental Employee Retirement Plan [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 0 0  
Other Liabilities [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) (127,000,000) (156,000,000)  
Other Liabilities [Member] | Qualified Plan [Member] | Pension Plan [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) 0 0  
Other Liabilities [Member] | Nonqualified Plan [Member] | Supplemental Employee Retirement Plan [Member]      
Amount recognized in the Consolidated Balance Sheets:      
Other assets (liabilities) $ (127,000,000) $ (156,000,000)