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Award Payout Range

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- Definition

Initial PBRSU value, percentage of value it cannot exceed

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- Definition

[Line Items] for Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Table]

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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 (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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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-Publisher FASB
-Name Accounting Standards Codification
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Share-Based Compensation And Other Compensation Arrangements Schedule of PBRSUs Grant Fair Values (Details) - USD ($)		1 Months Ended
	Feb. 25, 2019	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017	Feb. 26, 2018
Performance Awards [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years	3 years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 466.04	$ 390.27	$ 190.17
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate		23.88%	22.11%	21.37%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		2.46%	2.36%	1.46%
Maximum [Member] \| Performance Awards [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Amount payable at end of three-year performance period3			$ 200	$ 200
2018 performance awards [Member] \| Performance Awards [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
2017 Performance Awards [Member] \| Performance Awards [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
2018 PBRSU [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Initial PBRSU value, percentage of value it cannot exceed					400.00%
2018 PBRSU [Member] \| Maximum [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Award Payout Range					200.00%
2018 PBRSU [Member] \| Minimum [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Award Payout Range					0.00%
2017 PBRSU [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Initial PBRSU value, percentage of value it cannot exceed				400.00%
2017 PBRSU [Member] \| Maximum [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Award Payout Range				200.00%
2017 PBRSU [Member] \| Minimum [Member] \| Performance Based Restricted Stock Units (PBRSUs) [Member]
Schedule of Performance Based Restricted Stock Units Grant Date Fair values [Line Items]
Award Payout Range				0.00%