Inventories (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Inventories [Line Items]
Other Inventory, Gross	$ 7,500us-gaap_OtherInventory	$ 7,421us-gaap_OtherInventory
Progress Payments Netted Against Inventory for Long-term Contracts or Programs	29,679	29,266
Airplane Program 787 [Member]
Inventories [Line Items]
Inventory, work in process	34,309	33,163
Deferred production costs	26,942	26,149
Supplier advances	2,369	2,257
Unamortized tooling and other non-recurring costs	3,913	3,801
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders	22,357
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	8,498
Airplane Program 747 [Member]
Inventories [Line Items]
Deferred production costs	1,715	1,741
Unamortized tooling and other non-recurring costs	458	476
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders	1,054
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	1,119
Capitalized Precontract Costs [Member]
Inventories [Line Items]
Inventory subject to uncertainty	1,439	1,281
Early Issue Sales Consideration [Member]
Inventories [Line Items]
Inventory subject to uncertainty	3,391	3,341
Used Aircraft [Member]
Inventories [Line Items]
Other Inventory, Gross	259	275
ULA [Member]
Inventories [Line Items]
Inventory subject to uncertainty	168	154
Progress Payments Netted Against Inventory for Long-term Contracts or Programs	282	322
ULA [Member] \| Unsold Launches [Member]
Inventories [Line Items]
Inventory subject to uncertainty	$ 227

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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.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.8)

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-Publisher SEC

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- Definition

Amount of deferred costs for long-term contracts and programs. Includes, but is not limited to, initial tooling costs and deferred production costs.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

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.

+ References

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- Definition

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.

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Amount before valuation and LIFO reserves of other inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount of advances received from customers under long-term contracts which have been offset against inventories accounts at the balance sheet date.

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-Name Accounting Standards Codification

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- Definition

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.

+ References

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-Number 210

-Section 02

-Paragraph 6

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