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Stockholders' Equity And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) $ / shares in Units, $ in Millions		3 Months Ended				6 Months Ended		38 Months Ended
	Jul. 16, 2025 $ / shares	Jun. 30, 2025 USD ($) $ / shares shares	Mar. 31, 2025 $ / shares	Jun. 30, 2024 USD ($) $ / shares	Mar. 31, 2024 $ / shares	Jun. 30, 2025 USD ($) $ / shares	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2025 USD ($) shares	Sep. 15, 2029 USD ($)	May 15, 2029 USD ($)	Jun. 15, 2026 USD ($)	Apr. 20, 2022 USD ($)
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred stock dividends		$ (25)		$ (24)		$ (50)	$ (49)
Stock Redeemed or Called During Period, Value		$ 350
Banking Regulation, Capital Conservation Buffer, Capital Conserved, Minimum		0.025				0.025		0.025
Stock Repurchase Program, Authorized Amount												$ 2,500
Stock Repurchased During Period, Shares | shares								51,000,000
Stock Repurchased During Period, Value								$ 1,000
Cash dividend declared (in dollars per share) | $ / shares		$ 0.25	$ 0.25	$ 0.24	$ 0.24	$ 0.50	$ 0.48
Subsequent Event
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Cash dividend declared (in dollars per share) | $ / shares	$ 0.265
Increase to quarterly dividend (in dollars per share) | $ / shares	$ 0.015
Series C | Subsequent Event
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount										$ 10
Series D(3)
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Stock Redeemed or Called During Period, Shares | shares		3,500
Stock Redeemed or Called During Period, Value		$ 350
Payments of Stock Issuance Costs		4
ExcessofRedemptionAmountOverCarryingAmount		$ 4				$ 4		$ 4
Series E | Subsequent Event
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount											$ 10
Series F Preferred Stock | Subsequent Event
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount									$ 11

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