Stock-Based Compensation (Schedule of Weighted Average Grant-Date Fair Value and Assumptions Used) (Detail) - $ / shares	4 Months Ended	8 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2014	Sep. 27, 2013	Jan. 01, 2016	Jan. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value (per share)	$ 9.04	$ 9.48	$ 6.72	$ 6.15
Expected term (in years)	4 years 9 months 18 days	5 years	4 years 8 months 12 days	4 years 8 months 12 days
Expected volatility, percentage	29.50%	30.00%	24.50%	25.10%
Risk-free interest rate, percentage	1.40%	1.40%	1.40%	1.60%
Dividend yield, percentage	2.40%	2.80%	2.90%	2.90%
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value (per share)			$ 45.00
Expected volatility, percentage			27.67%
Risk-free interest rate, percentage			0.82%