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Debt Debt (Schedule of Long-term debt instruments) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Total debt $ 9,070us-gaap_DebtAndCapitalLeaseObligations $ 9,635us-gaap_DebtAndCapitalLeaseObligations
Boeing Capital Corporation [Member]    
Debt Instrument [Line Items]    
Total debt 2,412us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ba_BoeingCapitalCorporationMember		 2,577us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ba_BoeingCapitalCorporationMember
Other Boeing Debt [Member]    
Debt Instrument [Line Items]    
Total debt $ 6,658us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ba_OtherBoeingDebtMember		 $ 7,058us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ba_OtherBoeingDebtMember