Consolidated Statements of Changes in Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash dividends declared on Common Shares (in usd per share)	$ 0.205	$ 0.195
Adjustments To Additional Paid In Capital, Increase (Decrease) From Deferred Compensation Arrangement	$ (6)	$ (7)
Capital Surplus
Adjustments To Additional Paid In Capital, Increase (Decrease) From Deferred Compensation Arrangement	$ (6)	$ (7)
Series D Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	$ 12.50	$ 12.50
Series E Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	0.382813	0.382813
Series F Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	0.353125	0.353125
Series G Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	0.351563	$ 0.351563
Series H Preferred Stock
Cash dividends declared on Preferred Stock (in usd per share)	$ 0.387500