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Fair Value of Financial Assets - Schedule of Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Millions	Jun. 03, 2017	May 28, 2016
Gain (Loss) on Investments
Cost	$ 8.5	$ 7.5
Unrealized Gain	0.1	0.0
Unrealized Loss	0.0	0.0
Market Value	8.6	7.5
Mutual funds - fixed income
Gain (Loss) on Investments
Cost	7.6	6.4
Unrealized Gain	0.1	0.0
Unrealized Loss	0.0	0.0
Market Value	7.7	6.4
Mutual funds - equity
Gain (Loss) on Investments
Cost	0.9	0.7
Unrealized Gain	0.0	0.0
Unrealized Loss	0.0	0.0
Market Value	0.9	0.7
Government obligations
Gain (Loss) on Investments
Cost	0.0	0.4
Unrealized Gain	0.0	0.0
Unrealized Loss	0.0	0.0
Market Value	$ 0.0	$ 0.4

X

- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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-Publisher FASB
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-Topic 320
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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