Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended														9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 C-17 Program [Member] aircraft	Sep. 30, 2013 C-17 Program [Member] Capitalized Precontract Costs [Member]	Sep. 30, 2013 C-17 Program [Member] Potential Termination Liabilities [Member]	Sep. 30, 2013 C-17 Program [Member] International [Member] aircraft	Sep. 30, 2013 Financing Commitment [Member]	Dec. 31, 2012 Financing Commitment [Member]	Sep. 30, 2013 Financing Commitment [Member] External Credit Rating, Non Investment Grade [Member]	Sep. 30, 2013 Commitments to ULA [Member]	Sep. 30, 2013 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2012 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Sep. 30, 2013 Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2012 Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments [Member] Commercial Aircraft Commitments [Member]	Sep. 30, 2013 Probable Contractual Trade In Value of Aircraft [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2012 Probable Contractual Trade In Value of Aircraft [Member] Commercial Aircraft Commitments [Member]	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2013 Maximum [Member]
Commitments And Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 905	$ 865
Trade-In Commitment Expiration Date																	2013	2023
Other Commitment							19,095	18,083	19,095	527	1,500	1,535	227	108	227	108
Letters of Credit Outstanding, Amount	4,318	4,545
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments			92
Number of Aircraft Included In Backlog						8
Number of aircraft associated with inventory expenditures and potential termiation liability			14
Loss Contingency, Estimate of Possible Loss				$ 256	$ 436