Share-Based Payments (Tables)

5 Months Ended

Feb. 11, 2017

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 11, 2017, and February 13, 2016, using the Black-Scholes-Merton multiple-option pricing valuation model, was $139.80 and $156.19 per share, respectively, using the following weighted average key assumptions:

	Twenty-Four Weeks Ended
	February 11, 2017			February 13, 2016
Expected price volatility		18	%		18	%
Risk-free interest rate		1.2	%		1.5	%
Weighted average expected lives (in years)		5.1			5.7
Forfeiture rate		10	%		10	%
Dividend yield		0	%		0	%