Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified				3 Months Ended																3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 C-17 Program [Member] aircraft	Mar. 31, 2014 C-17 Program [Member] Inventory Expenditures And Termination Liabilities [Member]	Mar. 31, 2014 C-17 Program [Member] Capitalized Precontract Costs [Member]	Mar. 31, 2014 C-17 Program [Member] Potential Termination Liabilities [Member]	Mar. 31, 2014 C-17 Program [Member] International [Member] aircraft	Mar. 31, 2014 F-18 Program [Member] aircraft	Mar. 31, 2014 F-18 Program [Member] U.S. Navy [Member] aircraft	Mar. 31, 2014 Financing Commitment [Member]	Dec. 31, 2013 Financing Commitment [Member]	Mar. 31, 2014 Financing Commitment [Member] External Credit Rating, Non Investment Grade [Member]	Mar. 31, 2014 Commitments to ULA [Member]	Mar. 31, 2014 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Dec. 31, 2013 Total Contractual Trade-In Commitment [Member] Commercial Aircraft Commitments [Member]	Mar. 31, 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]	Mar. 31, 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]	Mar. 31, 2014 Minimum [Member]	Mar. 31, 2014 Maximum [Member]
Commitments And Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 923	$ 928
Trade-In Commitment Expiration Date																				2014	2023
Other Commitment										17,599	17,987	17,599	527	1,862	1,605	477	325	477	325
Letters of Credit Outstanding, Amount	4,310	4,376
Inventory Write-down				48
Number of Aircraft Included In Backlog							3		57
Number of aircraft associated with inventory expenditures and potential termiation liability			11
Loss Contingency, Estimate of Possible Loss					$ 705	$ 725
Number Of Aircraft funded in US Government budget								44