Represents the change in stock price of the entity's shares.

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of collateral posted for derivative contracts when the negative mark to fair value of the contracts exceeds specified levels.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The estimated amount of gains or losses, net of tax, on derivative instruments included in AOCI as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

Aggregate notional amount of derivative expressed in number of shares.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of methods through which the entity manages commodity price risk.

+ References

No definition available.

+ Details

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Namespace Prefix:	bll_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- 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

- Definition

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580

+ Details

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

- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994

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

- Definition

Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

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

- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624258-113959

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeRemainingMaturity1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
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Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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- Details

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- Details

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Financial Instruments and Risk Management - General (Details) $ / shares in Units, shares in Millions, $ in Millions		9 Months Ended
	Sep. 30, 2018 USD ($) approach	Sep. 30, 2018 USD ($) approach $ / shares shares	Dec. 31, 2017 USD ($)
Financial Instruments and Risk Management
Aggregate fair value of derivative instruments with credit-risk-related contingent features that were in a net liability position	$ 8.0	$ 8.0	$ 27.0
Collateral amount posted for derivative instruments with credit-risk-related contingent features that were in a net liability position	$ 0.0	$ 0.0	$ 0.0
Commodity contracts
Financial Instruments and Risk Management
Number of methods through which entity manages commodity price risk in connection with market price fluctuations of aluminum ingot \| approach	2	2
Notional amount of derivatives	$ 1,130.0	$ 1,130.0
Net gain expected to be recognized in the consolidated statement of earnings during the next 12 months		4.0
Gain (loss) on derivatives included in accumulated other comprehensive earnings (loss), net of tax	3.0	3.0
Commodity contracts \| Derivatives Designated As Hedging Instruments \| Cash Flow Hedging
Financial Instruments and Risk Management
Notional amount of derivatives	998.0	$ 998.0
Commodity contracts \| Maximum
Financial Instruments and Risk Management
Period within which derivative will expire		2 years
Interest rate swap and option contracts
Financial Instruments and Risk Management
Notional amount of derivatives	935.0	$ 935.0
Period within which derivative will expire		2 years
Currency Exchange Rate Risk
Financial Instruments and Risk Management
Notional amount of derivatives	$ 2,100.0	$ 2,100.0
Period within which derivative will expire		2 years
Net after-tax gain (loss) included in AOCI		$ 1.0
Cross-currency swap
Financial Instruments and Risk Management
Period within which derivative will expire	3 years
Gain (loss) on derivatives included in accumulated other comprehensive earnings (loss), net of tax	$ (28.0)	(28.0)
Amount of hedge contract	$ 1,000.0	$ 1,000.0
Equity contracts
Financial Instruments and Risk Management
Change in company's stock price (in dollars per share) \| $ / shares		$ 1
Combined notional value (in shares) \| shares		2.6