Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Cash dividends declared	$ 2.73	$ 2.50	$ 2.34
Exercise of stock options	0	15,000	15,000
Purchase of treasury shares	667,000	325,000	760,000
Stock Issued During Period, Shares, Acquisitions	667,000