Business Combinations (Allocation of Assets and Liabilitiies) (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 02, 2018	Mar. 30, 2018	Dec. 29, 2017	[1]
Business Acquisition [Line Items]
Goodwill		$ 2,726.4	$ 2,287.1
eBuilder [Member]
Business Acquisition [Line Items]
Purchase Consideration	$ 485.2	$ 485.2
Intangible Assets Acquired	109.4
Deferred Tax Liability	(19.6)
Less fair value of all assets/liabilities acquired	91.3
Goodwill	393.9
Cash and cash equivalents	2.5
Accounts receivable	14.2
Other receivables	43.9
Other current assets	0.7
Property and equipment, net	0.1
Other non-current assets	0.1
Accounts payable	(8.4)
Accrued liabilities	(39.9)
Deferred revenue liability	(11.7)
Net tangible assets acquired	1.5
Developed Product Technology [Member] | eBuilder [Member]
Business Acquisition [Line Items]
Intangible Assets Acquired	$ 60.5
Acquired Finite-lived Intangible Assets, Estimated Useful Life	7 years
Order or Production Backlog [Member] | eBuilder [Member]
Business Acquisition [Line Items]
Intangible Assets Acquired	$ 1.7
Acquired Finite-lived Intangible Assets, Estimated Useful Life	6 months
Customer Relationships [Member] | eBuilder [Member]
Business Acquisition [Line Items]
Intangible Assets Acquired	$ 42.4
Acquired Finite-lived Intangible Assets, Estimated Useful Life	10 years
Trade Names [Member] | eBuilder [Member]
Business Acquisition [Line Items]
Intangible Assets Acquired	$ 4.8
Acquired Finite-lived Intangible Assets, Estimated Useful Life	7 years

[1] See Note 2 for a summary of adjustments