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Pension Plans - Summary of Expected Benefit Payments (Detail) $ in Millions	Dec. 30, 2017 USD ($)
Retirement Benefits [Abstract]
2018	$ 73.6
2019	75.2
2020	78.9
2021	81.5
2022	91.4
2023-2027	$ 462.3

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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