(Summary Of Activity Of Restricted Stock Award Program) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, outstanding	5,620,025	5,514,728	5,766,477
Shares/units, granted	2,316,295	2,171,385	2,353,613
Shares/units, shares issued	(994,052)	(1,221,950)	(2,367,135)
Shares/units, forfeited	(1,016,126)	(844,138)	(238,227)
Shares/Units, outstanding	5,926,142	5,620,025	5,514,728
Weighted average grant date fair value, outstanding	$ 40.36	$ 41.14	$ 38.79
Weighted average grant date fair value, granted	45.24	49.15	43.49
Weighted average grant date fair value, shares issued	63.54	51.70	36.79
Weighted average grant date fair value, forfeited	57.55	51.70	50.64
Weighted average grant date fair value, outstanding	$ 35.43	$ 40.36	$ 41.14
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, outstanding	126,075	160,700	132,111
Shares/units, granted	85,098	82,228	87,910
Shares/units, shares issued	(85,768)	(83,053)	(52,021)
Shares/units, forfeited	(21,636)	(33,800)	(7,300)
Shares/Units, outstanding	103,769	126,075	160,700
Weighted average grant date fair value, outstanding	$ 44.83	$ 47.27	$ 50.17
Weighted average grant date fair value, granted	50.90	40.12	43.70
Weighted average grant date fair value, shares issued	45.59	44.25	48.90
Weighted average grant date fair value, forfeited	45.52	46.43	45.10
Weighted average grant date fair value, outstanding	$ 49.03	$ 44.83	$ 47.27