Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
NET SALES	$ 6,152,784	$ 6,204,194	$ 18,133,796	$ 18,151,273
COST OF GOODS SOLD	5,044,449	5,105,632	14,919,681	15,007,354
Gross profit	1,108,335	1,098,562	3,214,115	3,143,919
OPERATING EXPENSES:
Distribution, selling and administrative costs	929,487	908,640	2,726,249	2,748,683
Restructuring (benefit) charges	(360)	702	805	3,279
Total operating expenses	929,127	909,342	2,727,054	2,751,962
OPERATING INCOME	179,208	189,220	487,061	391,957
OTHER INCOME—Net	(3,172)	(810)	(9,447)	(170)
INTEREST EXPENSE—Net	41,843	43,211	132,688	126,099
Income before income taxes	140,537	146,819	363,820	266,028
INCOME TAX PROVISION	26,251	51,268	56,684	78,203
NET INCOME	114,286	95,551	307,136	187,825
OTHER COMPREHENSIVE INCOME—Net of tax:
Changes in retirement benefit obligations	435	1,059	26,269	3,596
Unrecognized gain on interest rate swaps	1,554	2,445	14,238	2,445
COMPREHENSIVE INCOME	$ 116,275	$ 99,055	$ 347,643	$ 193,866
NET INCOME PER SHARE
Basic (in dollars per share)	$ 0.53	$ 0.43	$ 1.42	$ 0.84
Diluted (in dollars per share)	$ 0.52	$ 0.42	$ 1.41	$ 0.83
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	216,623,903	223,807,520	215,843,738	222,641,854
Diluted (in shares)	218,107,064	225,862,274	217,696,533	226,325,711