Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 28, 2018	Oct. 29, 2017	Oct. 30, 2016
Summary of Significant Accounting Policies
Pretax net loss for foreign exchange	$ 11.4	$ 8.1	$ 13.9

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 20
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