CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019
Cash flows from operating activities:
Consolidated net income (loss)	$ 349,488	$ (312,356)
Adjustments to reconcile consolidated net income (loss) to net cash provided by operations:
Depreciation and amortization	140,654	139,739
Amortization of stock-based compensation	28,602	34,749
Equity in (earnings) losses of affiliated companies	(308)	2,155
Deferred income taxes	38,976	(65,484)
Impairments	7,223	698,246
Loss on disposition of businesses, net	0	15,439
Loss (gain) on investments, net	3,198	(7,622)
Other	4,043	10,814
Change in assets and liabilities, net of effects of acquired and disposed businesses:
Accounts receivable, net	533,570	916,908
Inventories	260,573	342,610
Accounts payable	(228,000)	(1,349,189)
Accrued expenses	29,154	(71,124)
Other assets and liabilities	(7,336)	8,308
Net cash provided by operating activities	1,159,837	363,193
Cash flows from investing activities:
Cash paid on disposition of businesses	0	(1,325)
Acquisition of property, plant, and equipment	(89,555)	(113,080)
Other	(14,582)	(5,555)
Net cash used for investing activities	(104,137)	(119,960)
Cash flows from financing activities:
Change in short-term and other borrowings	(86,155)	(93,129)
Repayments of long-term bank borrowings, net	(411,362)	(96,960)
Redemption of notes	(209,366)	0
Proceeds from exercise of stock options	5,963	11,710
Repurchases of common stock	(384,750)	(304,194)
Settlement of forward-starting interest rate swap	(48,378)	0
Other	(141)	(147)
Net cash used for financing activities	(1,134,189)	(482,720)
Effect of exchange rate changes on cash	5,405	(7,586)
Net decrease in cash and cash equivalents	(73,084)	(247,073)
Cash and cash equivalents at beginning of period	300,103	509,327
Cash and cash equivalents at end of period	$ 227,019	$ 262,254