Share-Based Associate Compensation Plans (Assumptions Used In Grants Issued) (Details) - $ / shares	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Options
Weighted-average fair value of options granted during the period	$ 9.87	$ 10.79	$ 13.21
Stock Options \| Minimum
Weighted-average expected term	7 years	8 years	8 years
Expected volatility	15.04%	16.95%	24.88%
Dividend yield	2.98%	2.83%	2.58%
Risk-free rates	2.77%	2.33%	1.44%
Stock Options \| Maximum
Weighted-average expected term	8 years	8 years	8 years
Expected volatility	15.10%	16.95%	25.75%
Dividend yield	2.98%	2.83%	3.12%
Risk-free rates	2.83%	2.33%	1.60%
Performance Based Shares \| Minimum
Weighted-average expected term	2 years 10 months 21 days	2 years 10 months 21 days	2 years 5 months 9 days
Expected volatility	16.01%	15.75%	15.42%
Dividend yield	2.81%	2.83%	2.58%
Risk-free rates	2.22%	1.44%	0.77%
Performance Based Shares \| Maximum
Weighted-average expected term	2 years 10 months 21 days	2 years 10 months 21 days	2 years 10 months 18 days
Expected volatility	26.32%	28.35%	33.64%
Dividend yield	2.81%	2.83%	3.12%
Risk-free rates	2.22%	1.44%	0.87%

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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