Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 529,454	$ 630,059	$ 866,978
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	687,966	642,591	580,723
Share-based compensation expense	103,641	95,423	83,019
Provision for deferred income taxes	51,125	34,428	47,409
Investment gains	(29,621)	0	0
Changes in assets and liabilities (net of businesses acquired):
Receivables, net	58,113	(207,785)	(32,836)
Inventory	1,855	(9,307)	(972)
Prepaid expenses and other	(76,748)	156,216	(191,369)
Accounts payable	(8,734)	65,202	6,960
Accrued income taxes	(4,599)	(27,849)	18,358
Deferred revenue	(39,245)	81,538	(3,114)
Other accrued liabilities	39,892	(6,507)	(67,481)
Net cash provided by operating activities	1,313,099	1,454,009	1,307,675
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(471,518)	(446,928)	(362,083)
Capitalized software development costs	(273,871)	(273,693)	(274,148)
Purchases of investments	(364,648)	(623,293)	(632,048)
Sales and maturities of investments	579,755	551,796	292,074
Purchase of other intangibles	(35,587)	(36,819)	(29,646)
Acquisition of business, net of cash acquired	(74,539)	0	0
Net cash used in investing activities	(640,408)	(828,937)	(1,005,851)
CASH FLOWS FROM FINANCING ACTIVITIES:
Long-term debt issuance	600,000	0	0
Repayment of long-term debt	0	(75,000)	0
Proceeds from exercise of options	258,036	91,349	76,705
Payments to taxing authorities in connection with shares directly withheld from associates	(16,601)	(9,873)	(11,584)
Treasury stock purchases	(1,320,542)	(623,127)	(173,434)
Dividends paid	(113,823)	0	0
Other	(8,450)	6,864	(2,671)
Net cash used in financing activities	(601,380)	(609,787)	(110,984)
Effect of exchange rate changes on cash and cash equivalents	(3,594)	(12,082)	9,222
Net increase (decrease) in cash and cash equivalents	67,717	3,203	200,062
Cash and cash equivalents at beginning of period	374,126	370,923	170,861
Cash and cash equivalents at end of period	$ 441,843	$ 374,126	$ 370,923