Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2011

Goodwill and Other Intangible Assets (Tables) [Abstract]

Changes in carrying amount of goodwill

					Currency
	June 30,		Business		Translation and			September 30,
	2010		Acquisitions		Other			2010
Building efficiency
North America systems	$	526	$	—	$	(4	)	$	522
North America service		672		4		—			676
Global workplace solutions		169		—		8			177
Asia		368		—		11			379
Other		1,035		—		50			1,085
Automotive experience
North America		1,377		—		1			1,378
Europe		1,022		4		114			1,140
Asia		218		—		15			233
Power solutions		830		51		30			911
Total	$	6,217	$	59	$	225		$	6,501

					Currency
	September 30,		Business		Translation and			June 30,
	2010		Acquisitions		Other			2011
Building efficiency
North America systems	$	522	$	—	$	(3	)	$	519
North America service		676		—		—			676
Global workplace solutions		177		—		7			184
Asia		379		—		12			391
Other		1,085		—		36			1,121
Automotive experience
North America		1,378		4		—			1,382
Europe		1,140		429		70			1,639
Asia		233		—		10			243
Power solutions		911		3		24			938
Total	$	6,501	$	436	$	156		$	7,093

Other Intangible Assets

	June 30, 2011							September 30, 2010							June 30, 2010
	Gross Carrying		Accumulated					Gross Carrying		Accumulated					Gross Carrying		Accumulated
	Amount		Amortization			Net		Amount		Amortization			Net		Amount		Amortization			Net
Amortized intangible assets
Patented technology	$	287	$	(215	)	$	72	$	277	$	(191	)	$	86	$	266	$	(180	)	$	86
Customer relationships		440		(85	)		355		373		(70	)		303		344		(64	)		280
Miscellaneous		113		(35	)		78		68		(31	)		37		63		(28	)		35
Total amortized intangible assets		840		(335	)		505		718		(292	)		426		673		(272	)		401
Unamortized intangible assets
Trademarks		317		—			317		315		—			315		294		—			294
Total intangible assets	$	1,157	$	(335	)	$	822	$	1,033	$	(292	)	$	741	$	967	$	(272	)	$	695