Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 498,739	$ 530,320
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	473,748	425,241
Share-based compensation expense	74,348	59,217
Provision for deferred income taxes	16,412	36,667
Changes in assets and liabilities:
Receivables, net	(250,042)	(19,080)
Inventory	(9,006)	(909)
Prepaid expenses and other	162,053	(11,908)
Accounts payable	21,762	(12,651)
Accrued income taxes	(9,150)	1,984
Deferred revenue	34,316	12,749
Other accrued liabilities	33,940	(62,865)
Net cash provided by operating activities	1,047,120	958,765
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(305,951)	(262,372)
Capitalized software development costs	(209,122)	(210,033)
Purchases of investments	(477,156)	(337,010)
Sales and maturities of investments	454,439	237,912
Purchase of other intangibles	(24,304)	(22,186)
Net cash used in investing activities	(562,094)	(593,689)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of Long-term Debt	(75,000)	0
Proceeds from exercise of stock options	82,001	61,688
Payments to taxing authorities in connection with shares directly withheld from associates	(9,749)	(7,989)
Treasury stock purchases	(345,210)	(23,389)
Contingent consideration payments for acquisition of businesses	(1,691)	(2,671)
Other	3,945	0
Net cash provided by (used in) financing activities	(345,704)	27,639
Effect of exchange rate changes on cash and cash equivalents	(11,631)	9,478
Net increase (decrease) in cash and cash equivalents	127,691	402,193
Cash and cash equivalents at beginning of period	370,923	170,861
Cash and cash equivalents at end of period	$ 498,614	$ 573,054