Preliminary amount of consideration to be transferred by the acquirer, subject to adjustment, in connection with a definitive purchase agreement.

No definition available.

+ Details

Name:	bery_BusinessCombinationPreliminaryPurchasePriceSubjectToAdjustment
Namespace Prefix:	bery_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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Subsequent Events (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended								12 Months Ended
Subsequent Events (Details) € in Millions, $ in Millions	Nov. 21, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($)	Apr. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 01, 2016 USD ($)	Jul. 02, 2016 USD ($)	Apr. 02, 2016 USD ($)	Jan. 02, 2016 USD ($)	Sep. 30, 2017 USD ($)	Oct. 01, 2016 USD ($)	Sep. 26, 2015 USD ($)	Nov. 21, 2017 EUR (€)
Subsequent Events [Abstract]
Sales		$ 1,881	$ 1,906	$ 1,806	$ 1,502	$ 1,618	$ 1,645	$ 1,614	$ 1,612	$ 7,095	$ 6,489	$ 4,881
Clopay [Member]
Subsequent Events [Abstract]
Sales										$ 461
Subsequent Event [Member] \| Cross-Currency Swap [Member]
Subsequent Events [Abstract]
Notional amount of derivative \| €													€ 250
Subsequent Event [Member] \| Clopay [Member]
Subsequent Events [Abstract]
Preliminary purchase price subject to adjustment	$ 475