Segment Information (Schedule Of Capital Expenditures By Segment) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Capital expenditures	$ 1,703	$ 1,713	$ 1,125
Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Capital expenditures	665	540	341
Defense, Space And Security [Member]
Segment Reporting Information [Line Items]
Capital expenditures	325	278	236
Defense, Space And Security [Member] | Boeing Military Aircraft [Member]
Segment Reporting Information [Line Items]
Capital expenditures	153	122	102
Defense, Space And Security [Member] | Network & Space Systems [Member]
Segment Reporting Information [Line Items]
Capital expenditures	115	101	83
Defense, Space And Security [Member] | Global Services & Support [Member]
Segment Reporting Information [Line Items]
Capital expenditures	57	55	51
Other Segment [Member]
Segment Reporting Information [Line Items]
Capital expenditures	232	174	136
Unallocated Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Capital expenditures	$ 481	$ 721	$ 412