Note 3 – Goodwill and Acquired Intangibles

Changes in the carrying amount of goodwill by reportable segment for the years ended December 31, 2011, 2010 and 2009 were as follows:


	Commercial Airplanes			Boeing Military Aircraft		Network & Space Systems			Global Services & Support		Total
Balance at January 1, 2009		$1,449		$	848	$	1,084			$266		$3,647
Vought acquisition		606										606
Goodwill adjustments		28					18			20		66
Balance at December 31, 2009	$	2,083		$	848	$	1,102		$	286	$	4,319
Argon acquisition					193		345			11		549
Other acquisitions		18					14			4		36
Goodwill adjustments		9								24		33
Balance at December 31, 2010	$	2,110		$	1,041	$	1,461		$	325	$	4,937
Acquisitions							16					16
Goodwill adjustments		(4	)				(4	)				(8	)
Balance at December 31, 2011	$	2,106		$	1,041	$	1,473		$	325	$	4,945

As of December 31, 2011 and 2010, we had indefinite-lived intangible assets with carrying amounts of $497 and $499 relating to tradenames.

The gross carrying amounts and accumulated amortization of our acquired finite-lived intangible assets were as follows at December 31:


	2011				2010
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Distribution rights	$	1,915	$	295	$	1,661	$	211
Product know-how		507		144		499		116
Customer base		606		253		603		208
Developed technology		833		684		834		653
Other		195		133		193		122
Total	$	4,056	$	1,509	$	3,790	$	1,310

Amortization expense for acquired finite-lived intangible assets for the years ended December 31, 2011 and 2010 was $203 and $217. Estimated amortization expense for the five succeeding years is as follows: 2012 – $209; 2013 – $189; 2014 – $183; 2015 – $171 and 2016 – $155.

Non-cash investing and financing transactions related to acquired finite-lived intangibles during 2011 and 2010 were $256 and $62. Total acquired finite-lived intangibles of $335 and $529 remain unpaid as of December 31, 2011 and 2010.