Share-Based Payments (Tables)

5 Months Ended

Feb. 09, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense

The weighted average fair value of the stock option awards granted during the twenty-four week periods ended February 9, 2019 and February 10, 2018, using the Black-Scholes-Merton multiple-option pricing valuation model, was $208.33 and $128.99 per share, respectively, using the following weighted average key assumptions:

	Twenty-Four Weeks Ended
	February 9, 2019			February 10, 2018
Expected price volatility		21	%		20	%
Risk-free interest rate		3.0	%		1.9	%
Weighted average expected lives (in years)		5.6			5.1
Forfeiture rate		10	%		10	%
Dividend yield		0	%		0	%