Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 375,123	$ 498,739
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	509,559	473,748
Share-based compensation expense	73,421	74,348
Provision for deferred income taxes	22,793	16,412
Investment gains	(24,231)	0
Changes in assets and liabilities:
Receivables, net	24,558	(250,042)
Inventory	1,877	(9,006)
Prepaid expenses and other	(75,191)	162,053
Accounts payable	(3,346)	21,762
Accrued income taxes	(795)	(9,150)
Deferred revenue	(89,400)	34,316
Other accrued liabilities	61,156	33,940
Net cash provided by operating activities	875,524	1,047,120
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(388,588)	(305,951)
Capitalized software development costs	(211,284)	(209,122)
Purchases of investments	(317,979)	(477,156)
Sales and maturities of investments	507,258	454,439
Purchase of other intangibles	(25,794)	(24,304)
Net cash used in investing activities	(436,387)	(562,094)
CASH FLOWS FROM FINANCING ACTIVITIES:
Long-term debt issuance	600,000	0
Repayment of long-term debt	0	(75,000)
Proceeds from exercise of stock options	188,474	82,001
Payments to taxing authorities in connection with shares directly withheld from associates	(14,994)	(9,749)
Treasury stock purchases	(1,020,542)	(345,210)
Dividends paid	(57,293)	0
Other	(8,450)	2,254
Net cash provided by (used in) financing activities	(312,805)	(345,704)
Effect of exchange rate changes on cash and cash equivalents	(4,028)	(11,631)
Net increase in cash and cash equivalents	122,304	127,691
Cash and cash equivalents at beginning of period	374,126	370,923
Cash and cash equivalents at end of period	$ 496,430	$ 498,614