CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Income Statement [Abstract]
Document Period End Date				Jun. 29, 2019
Sales	[1]	$ 7,344,548	$ 7,392,528	$ 14,500,539	$ 14,268,141
Cost of sales		6,529,639	6,459,708	12,823,942	12,466,377
Gross profit		814,909	932,820	1,676,597	1,801,764
Operating expenses:
Selling, general, and administrative expenses		599,212	580,388	1,155,288	1,143,357
Depreciation and amortization		46,982	46,422	94,508	93,669
Loss on disposition of businesses, net		0	0	866	1,562
Impairments (Notes D and E)		697,993	0	697,993	0
Restructuring, integration, and other charges		19,912	19,183	31,572	40,354
Total operating expenses		1,364,099	645,993	1,980,227	1,278,942
Operating income (loss)		(549,190)	286,827	(303,630)	522,822
Equity in earnings (losses) of affiliated companies		382	517	(1,085)	(156)
Gain (loss) on investments, net		1,390	(2,563)	6,738	(5,015)
Employee benefit plan expense		1,139	1,257	2,278	2,488
Interest and other financing expense, net		51,563	60,803	103,544	105,982
Income (loss) before income taxes		(600,120)	222,721	(403,799)	409,181
Provision (benefit) for income taxes		(52,369)	51,681	1,538	98,271
Consolidated net income (loss)		(547,751)	171,040	(405,337)	310,910
Noncontrolling interests		1,215	1,125	2,894	1,901
Net income (loss) attributable to shareholders		$ (548,966)	$ 169,915	$ (408,231)	$ 309,009
Net income (loss) per share:
Basic		$ (6.48)	$ 1.94	$ (4.80)	$ 3.52
Diluted	[2]	$ (6.48)	$ 1.92	$ (4.80)	$ 3.48
Weighted-average shares outstanding:
Basic		84,652	87,802	85,022	87,878
Diluted		84,652	88,652	85,022	88,841

[1] Includes sales related to the United States of $2,902,393 and $5,684,428 for the second quarter and first six months of 2019 and $2,968,469 and $5,618,137 for the second quarter and first six months of 2018, respectively.

[2] Stock-based compensation awards for the issuance of 915 and 515 shares for the second quarter and first six months of 2018, respectively, were excluded from the computation of net income per share on a diluted basis as their effect was anti-dilutive.