CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Sep. 29, 2017	Sep. 30, 2016	Oct. 02, 2015
Cash flows from operating activities:
Net earnings		$ 250.3	$ 402.7	$ 412.0
Adjustments to reconcile net earnings to net cash provided by operating activities:
Share-based compensation expense		41.2	48.3	46.3
Tax benefits from exercises of share-based payment awards		0.7	3.0	12.6
Excess tax benefits from share-based compensation		(1.0)	(3.9)	(12.6)
Depreciation		58.5	64.2	60.1
Amortization of intangible assets		18.4	15.6	8.4
Deferred taxes		(14.9)	(23.9)	5.4
Provision for doubtful accounts receivable		43.7	3.5	1.1
Impairment charges		51.4	2.2	0.0
Other, net		3.0	2.1	1.4
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable		(52.6)	(168.3)	(79.4)
Inventories		(0.1)	(27.7)	(41.6)
Prepaid expenses and other assets		(46.7)	8.0	(8.2)
Accounts payable		5.5	9.7	6.5
Accrued liabilities and other long-term liabilities		11.7	61.0	(14.0)
Deferred revenues		30.0	(40.2)	71.6
Net cash provided by operating activities		399.1	356.3	469.6
Cash flows from investing activities:
Purchases of property, plant and equipment		(59.1)	(80.4)	(91.4)
Issuance of notes receivable		(18.2)	(21.7)	(23.7)
Purchase of senior secured debt		(24.5)	0.0	0.0
Investment in available-for-sale securities		(13.4)	(3.3)	(1.8)
Sale of available-for-sale securities		0.0	8.6	0.6
Sale of notes receivable		0.0	8.3	0.0
Investment in privately-held companies		(8.4)	(0.6)	0.0
Acquisitions, net of cash acquired		(3.0)	(21.1)	(95.3)
Net amounts received from (paid to) deferred compensation plan trust account		(4.4)	0.3	1.8
Other		0.9	0.7	(1.1)
Net cash used in investing activities		(130.1)	(109.2)	(210.9)
Cash flows from financing activities:
Repurchases of common stock		(294.5)	(461.3)	(422.0)
Proceeds from issuance of common stock to employees		72.1	60.6	91.0
Excess tax benefits from share-based compensation		1.0	3.9	12.6
Employees' taxes withheld and paid for restricted stock and restricted stock units		(10.7)	(11.0)	(16.3)
Cash received from Varex term facility		200.0	0.0	0.0
Cash and cash equivalents contributed to Varex Imaging Corporation		(42.6)	0.0	0.0
Borrowings under credit facility agreement		231.0	83.0	145.0
Repayments under credit facility agreement		(223.5)	(133.0)	(195.0)
Net (repayments) borrowings under the credit facility agreements with maturities less than 90 days		(322.0)	217.1	108.6
Contingent consideration and hold back		(1.4)	(5.6)	(3.4)
Other		(1.8)	0.5	2.8
Net cash used in financing activities		(392.4)	(245.8)	(276.7)
Effects of exchange rate changes on cash and cash equivalents		(3.9)	(3.3)	14.2
Net decrease in cash and cash equivalents		(127.3)	(2.0)	(3.8)
Cash and cash equivalents at beginning of period	[1]	843.5	845.5	849.3
Cash and cash equivalents at end of period	[1]	$ 716.2	843.5	845.5
Cash and cash equivalents from discontinued operations			$ 32.1	$ 20.5

[1] Cash and cash equivalents includes $32.1 million and $20.5 million at September 30, 2016 and October 2, 2015, respectively classified as discontinued operations. See Note 2, "Discontinued Operations" for more information.