Consolidated Statements of Shareholders Equity (USD $) In Millions		Total	Common Shares [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Beginning Balance at Dec. 31, 2009		$ 699	$ 5	$ 696	$ (2)
Beginning Balance, Shares at Dec. 31, 2009			5
Non-cash capital contributions from Boeing		2		2
Cash dividends to Boeing (including return of capital)		(108)		(16)		(92)
Net income		92				92
Reclassification adjustment for gain realized on investments, net of tax of $1		(2)			(2)
Unrealized gain on investments, net of tax of $1		4			4
Ending Balance at Dec. 31, 2010		687	5	682
Ending Balance, Shares at Dec. 31, 2010			5
Non-cash capital contributions from Boeing		1		1
Cash dividends to Boeing (including return of capital)		(228)		(160)		(68)
Net income		76				76
Unrealized gain on investments, net of tax of $1	[1]	1			1
Ending Balance at Dec. 31, 2011		537	5	523	1	8
Ending Balance, Shares at Dec. 31, 2011			5
Non-cash capital contributions from Boeing		1		1
Cash dividends to Boeing (including return of capital)		(89)		(17)		(72)
Net income		48				48
Ending Balance at Dec. 31, 2012		$ 497	$ 5	$ 507	$ 1	$ (16)
Ending Balance, Shares at Dec. 31, 2012			5

[1] At December 31, 2011, the tax amount related to the unrealized gain and loss on investments was less than $1.