CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 7,911,046	$ 7,256,382	$ 6,779,579
Cost of merchandise sold	5,208,518	4,764,417	4,454,377
Gross profit	2,702,528	2,491,965	2,325,202
Selling, general and administrative expenses	1,823,440	1,639,749	1,488,164
Depreciation and amortization	177,351	165,834	142,958
Operating income	701,737	686,382	694,080
Interest expense, net	18,352	13,859	5,810
Income before income taxes	683,385	672,523	688,270
Income tax expense	151,028	249,924	251,150
Net income	$ 532,357	$ 422,599	$ 437,120
Net income per share – basic	$ 4.34	$ 3.31	$ 3.29
Net income per share – diluted	$ 4.31	$ 3.30	$ 3.27
Weighted average shares outstanding
Basic	122,651	127,588	132,905
Diluted	123,471	128,204	133,813
Dividends declared per common share outstanding	$ 1.20	$ 1.05	$ 0.92