(Summary Of Performance Share Program Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, outstanding	5,312,480	5,926,142	5,620,025
Shares/units, granted		1,899,211	2,316,295
Shares/units, shares issued		(1,130,236)	(994,052)
Shares/units, forfeited	(1,234,328)	(1,382,637)	(1,016,126)
Shares/units, outstanding	(6,120,951)	(5,312,480)	(5,926,142)
Weighted average grant date fair value, outstanding	$ 38.01	$ 35.43	$ 40.36
Weighted average grant date fair value, granted		50.32	45.24
Weighted average grant date fair value, shares issued		40.23	63.54
Weighted average grant date fair value, forfeited	45.38	42.03	57.55
Weighted average grant date fair value, outstanding	$ 35.31	$ 38.01	$ 35.43
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, granted	1,411,042
Shares/units, shares issued	(15,161)
Weighted average grant date fair value, granted	$ 34.63
Weighted average grant date fair value, shares issued	$ 34.63
Restricted performance share plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/units, granted	1,619,481
Shares/units, shares issued	(972,563)
Weighted average grant date fair value, granted	$ 37.78
Weighted average grant date fair value, shares issued	$ 40.44