Share-Based Associate Compensation Plans (Assumptions Used In Grants Issued) (Details) - $ / shares	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options
Weighted-average fair value of options granted during the period	$ 13.21	$ 11.15	$ 10.16
Stock Options \| Minimum
Weighted-average expected term	8 years	8 years	8 years
Expected volatility	24.88%	25.04%	25.20%
Dividend yield	2.58%	3.52%	3.76%
Risk-free rates	1.44%	1.94%	2.42%
Stock Options \| Maximum
Weighted-average expected term	8 years	9 years	9 years
Expected volatility	25.75%	26.15%	26.22%
Dividend yield	3.12%	3.52%	3.76%
Risk-free rates	1.60%	2.01%	2.62%
Performance Based Shares
Dividend yield		3.52%	3.74%
Risk-free rates		0.99%	0.66%
Performance Based Shares \| Minimum
Weighted-average expected term	2 years 5 months 9 days
Expected volatility	15.42%	13.78%	18.69%
Dividend yield	2.58%
Risk-free rates	0.77%
Performance Based Shares \| Maximum
Weighted-average expected term	2 years 10 months 18 days	2 years 10 months 18 days	2 years 10 months 18 days
Expected volatility	33.64%	34.69%	41.21%
Dividend yield	3.12%
Risk-free rates	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=6415400&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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