Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Stock option exercises/deferred stock unit conversions, shares	267,357	399,810	987,758
Treasury Stock, Shares, Acquired	436,765	0	0
Stock Issued During Period, Shares, Treasury Stock Reissued			18,555
Preferred Stock, Dividends Per Share, Declared	$ 44.50	$ 44.50	$ 47.71
Preferred stock, Dividends equivalent per depositary share, Declared	1.11	1.11	1.19
Common Stock, Dividends, Per Share, Cash Paid	$ 3.58	$ 3.24	$ 2.94
Share awards vesting | Treasury Stock, Common
Treasury Stock, Shares, Acquired	35,897	31,351	31,317