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Employee Benefit Plans - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 29, 2019 USD ($)
North America
Defined Benefit Plan Disclosure [Line Items]
Pension and other postretirement contributions, remainder of fiscal year	$ 1
Pension and other postretirement contributions, current period	1
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Pension and other postretirement contributions, remainder of fiscal year	1
Pension and other postretirement contributions, current period	$ 1

X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e2709-114920

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- Details

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Balance Type:
Period Type:

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- Details

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Period Type: