Share-Based Associate Compensation Plans (Assumptions Used In Grants Issued) (Details) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock Options
Weighted-average fair value of options granted during the period	$ 15.45	$ 11.73	$ 9.87
Stock Options \| Minimum
Weighted-average expected term	7 years	7 years	7 years
Expected volatility	16.89%	14.49%	15.04%
Dividend yield	2.15%	2.61%	2.98%
Risk-free rates	1.40%	2.62%	2.77%
Stock Options \| Maximum
Weighted-average expected term	8 years	8 years	8 years
Expected volatility	17.13%	15.39%	15.10%
Dividend yield	2.15%	2.61%	2.98%
Risk-free rates	1.41%	2.64%	2.83%
Performance Based Shares
Weighted-average expected term	2 years 10 months 9 days	2 years 10 months 9 days	2 years 10 months 20 days
Dividend yield	2.15%	2.61%	2.81%
Risk-free rates	1.30%	2.48%	2.22%
Performance Based Shares \| Minimum
Expected volatility	15.88%	15.10%	16.01%
Performance Based Shares \| Maximum
Expected volatility	25.13%	25.00%	26.32%

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 award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
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-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=115993241&loc=d3e301413-122809

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