Share-Based Associate Compensation Plans (Assumptions Used In Grants Issued) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Stock Options
Weighted-average fair value of options granted during the period	$ 10.79	$ 13.21	$ 11.15
Stock Options | Minimum
Weighted-average expected term	8 years	8 years	8 years
Expected volatility	16.95%	24.88%	25.04%
Dividend yield	2.83%	2.58%	3.52%
Risk-free rates	2.33%	1.44%	1.94%
Stock Options | Maximum
Weighted-average expected term	8 years	8 years	9 years
Expected volatility	16.95%	25.75%	26.15%
Dividend yield	2.83%	3.12%	3.52%
Risk-free rates	2.33%	1.60%	2.01%
Performance Based Shares
Weighted-average expected term	2 years 10 months 21 days		2 years 10 months 18 days
Dividend yield	2.83%		3.52%
Risk-free rates	1.44%		0.99%
Performance Based Shares | Minimum
Weighted-average expected term		2 years 5 months 9 days
Expected volatility	15.75%	15.42%	13.78%
Dividend yield		2.58%
Risk-free rates		0.77%
Performance Based Shares | Maximum
Weighted-average expected term		2 years 10 months 18 days
Expected volatility	28.35%	33.64%	34.69%
Dividend yield		3.12%
Risk-free rates		0.87%