Earnings Per Share (Schedule Of Anti-Dilutive Options and Awards) (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average exercise price of stock options excluded from the calculation of diluted EPS (in dollars per share)	$ 24.38	$ 25.24	$ 24.60	$ 25.85
Employee stock option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Awards excluded from the calculation of diluted EPS (in shares)	2,446	2,721	2,428	2,512
Other equity awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Awards excluded from the calculation of diluted EPS (in shares)	565	482	404	247