Revenue Recognition - Contract Assets and Liabilities and Remaining Performance Obligations (Details) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2018	Jun. 01, 2018
Contract Assets and Liabilities
Contract assets-current	$ 48.8	$ 49.6
Contract assets - non-current	23.1	12.9
Contract liabilities - current	(11.4)	(9.4)
Contract liabilities - non-current	(47.1)	(33.0)
Net contract assets	13.4	$ 20.1
Change in contract assets - current	(0.8)
Change in contract assets - Noncurrent	10.2
Change in contract liabilities - current	(2.0)
Change in contract liabilities - non-current	(14.1)
Change in net contract assets	(6.7)
Remaining Performance Obligations
Remaining performance obligation	$ 1,650.0
Remaining performance obligation (as a percent)	50.00%

The amount of contract with customer asset after reducing liabilities.

No definition available.

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Period Type:	instant

- Definition

Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time classified as current.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in contract with customer assets (liabilities) net.

+ References

No definition available.

+ Details

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+ References

No definition available.

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- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable classified as current.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable classified as noncurrent.

+ References

No definition available.

+ Details

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- References

No definition available.

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Balance Type:	na
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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- References

No definition available.

+ Details

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

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- Definition

Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
-Paragraph 13
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

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