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Amount Of Deferred Costs Related To Commercial Aircraft Programs

No definition available.

Name:	ba_AmountOfDeferredCostsRelatedToCommercialAircraftPrograms
Namespace Prefix:	ba_
Data Type:	xbrli:monetaryItemType
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The portion of the aggregate amount of manufacturing or production costs and any related deferred costs (for example, initial tooling costs) that exceeds the aggregate estimated cost of all in-process and delivered units on the basis of the estimated average cost of all units expected to be produced under long-term contracts and programs not yet complete, which will be absorbed in cost of sales based on existing firm orders at the latest balance sheet date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Carrying amount as of the balance sheet date of unamortized tooling and other non-recurring costs related to commercial aircraft programs.

No definition available.

Name:	ba_UnamortizedTooling
Namespace Prefix:	ba_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Carrying value of capitalized payments made in advance for inventory that is expected to be received within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Period Type:	instant

Amount of unpriced change orders or other similar items subject to uncertainty concerning their determination or ultimate realization included in inventory as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(d)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Data Type:	xbrli:monetaryItemType
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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.

No definition available.

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

Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Name:	us-gaap_InventoryWorkInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The portion of the aggregate amount of manufacturing or production costs and any related deferred costs (for example, initial tooling costs) that exceeds the aggregate estimated cost of all in-process and delivered units on the basis of the estimated average cost of all units expected to be produced under long-term contracts and programs not yet complete, which would not be absorbed in cost of sales based on existing firm orders at the latest balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(d)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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

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

Name:	srt_AircraftTypeAxis=ba_AirplaneProgram737Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_AircraftTypeAxis=ba_AirplaneProgram777xMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: