Segment Information (Schedule Of Assets By Segment) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Assets	$ 81,595	$ 79,986
Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Assets	39,116	35,458
Total Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Assets	16,988	17,990
Boeing Capital [Member]
Segment Reporting Information [Line Items]
Assets	4,226	4,626
Other Segment [Member]
Segment Reporting Information [Line Items]
Assets	1,172	1,112
Unallocated Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Assets	20,093	20,800
Total Defense, Space & Security [Member] | Boeing Military Aircraft [Member]
Segment Reporting Information [Line Items]
Assets	6,622	7,390
Total Defense, Space & Security [Member] | Network & Space Systems [Member]
Segment Reporting Information [Line Items]
Assets	6,848	7,018
Total Defense, Space & Security [Member] | Global Services & Support [Member]
Segment Reporting Information [Line Items]
Assets	$ 3,518	$ 3,582