Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended				3 Months Ended															6 Months Ended		3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 C-17 Program [Member] aircraft	Mar. 31, 2014 C-17 Program [Member] Inventory Expenditures And Termination Liabilities [Member]	Jun. 30, 2014 C-17 Program [Member] Capitalized Precontract Costs [Member]	Jun. 30, 2014 C-17 Program [Member] Potential Termination Liabilities [Member]	Jun. 30, 2014 C-17 Program [Member] International [Member] aircraft	Jun. 30, 2014 F-18 Program [Member] U.S. Navy [Member] aircraft	Jun. 30, 2014 Financing Commitment [Member]	Dec. 31, 2013 Financing Commitment [Member]	Jun. 30, 2014 Financing Commitment [Member] External Credit Rating, Non Investment Grade [Member]	Jun. 30, 2014 Commitments to ULA [Member]	Jun. 30, 2014 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2013 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Jun. 30, 2014 Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2013 Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments [Member] Commercial Aircraft Commitments [Member]	Jun. 30, 2014 Probable Contractual Trade In Value of Aircraft [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2013 Probable Contractual Trade In Value of Aircraft [Member] Commercial Aircraft Commitments [Member]	Jun. 30, 2014 Minimum [Member]	Jun. 30, 2014 Maximum [Member]	Jun. 30, 2014 Commercial Airplanes Segment [Member]	Jun. 30, 2014 Boeing Defense Space Security Segment [Member]	Jun. 30, 2014 KC-46A Tanker [Member]
Quarterly Estimate Adjustment [Line Items]
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	$ (312)	$ 59	$ (145)	$ 164																				$ (238)	$ (187)	$ (425)
Commitments And Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	895		895		928
Trade-In Commitment Expiration Date																						2014	2023
Other Commitment												17,924	17,987	17,924	527	1,953	1,605	503	325	503	325
Letters of Credit Outstanding, Amount	4,095		4,095		4,376
Inventory Write-down							48
Number of Aircraft Included In Backlog										2	89
Number of aircraft associated with inventory expenditures and potential termiation liability						10
Loss Contingency, Estimate of Possible Loss								$ 938	$ 602