(Summary Of Performance Share Program Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, outstanding	5,926,142	5,620,025	5,514,728
Shares/units, granted	1,899,211	2,316,295	2,171,385
Shares/units, shares issued	(1,130,236)	(994,052)	(1,221,950)
Shares/units, forfeited	(1,382,637)	(1,016,126)	(844,138)
Shares/units, outstanding	(5,312,480)	(5,926,142)	(5,620,025)
Weighted average grant date fair value, outstanding	$ 35.43	$ 40.36	$ 41.14
Weighted average grant date fair value, granted	50.32	45.24	49.15
Weighted average grant date fair value, shares issued	40.23	63.54	51.70
Weighted average grant date fair value, forfeited	42.03	57.55	51.70
Weighted average grant date fair value, outstanding	$ 38.01	$ 35.43	$ 40.36