Segment Information (Schedule Of Capital Expenditures By Segment) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting Information [Line Items]
Capital Expenditures	$ 1,713	$ 1,125	$ 1,186
Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	540	341	420
Boeing Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	278	236	267
Other Segment [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	174	136	113
Unallocated Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	721	412	386
Boeing Defense, Space & Security [Member] | Boeing Military Aircraft [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	122	102	141
Boeing Defense, Space & Security [Member] | Network & Space Systems [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	101	83	51
Boeing Defense, Space & Security [Member] | Global Services & Support [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	$ 55	$ 51	$ 75