Consolidated Statement of Changes in Stockholders' Equity (USD $) In Millions		Total	Common stock	Treasury stock	Profit employed in the business	Accumulated other comprehensive income (loss)	Noncontrolling interests	Comprehensive income (loss)
Balance at Dec. 31, 2009		$ 8,823	$ 3,439	$ (10,646)	$ 19,711	$ (3,764)	$ 83
Balance, as adjusted at Dec. 31, 2009		8,820	3,439	(10,646)	19,705	(3,761)	83
Increase (Decrease) in Stockholders' Equity
Adjustment to adopt consolidation of variable interest entities	[1]	(3)			(6)	3
Profit (loss) of consolidated and affiliated companies		969			940		29	969
Foreign currency translation, net of tax of $84 and $153 for the six months ended June 30, 2011 and 2010, respectively		(435)				(428)	(7)	(435)
Pension and other postretirement benefits
Amortization of actuarial (gain) loss, net of tax of $112 and $91 for the six months ended June 30, 2011 and 2010, respectively		158				152	6	158
Amortization of prior service (credit) cost, net of tax of $6		(7)				(7)		(7)
Amortization of transition (asset) obligation, net of tax of $0		1				1		1
Derivative financial instruments
Gains (losses) deferred, net of tax of $6 and $29 for the six months ended June 30, 2011 and 2010, respectively		(50)				(50)		(50)
(Gains) losses reclassified to earnings, net of tax of $0 and $19 for the six months ended June 30, 2011 and 2010, respectively		33				33		33
Available-for-sale securities
Gains (losses) deferred, net of tax of $5 and $11 for the six months ended June 30, 2011 and 2010, respectively		15				15		15
Change in ownership from noncontrolling interests		(29)	(17)				(12)
Dividends declared		(542)			(542)
Common shares issued from treasury stock for stock-based compensation: 7,243,608 and 4,716,874 for the six months ended June 30, 2011 and 2010, respectively		84	(2)	86
Common shares issued from treasury stock for benefit plans: 1,032,816		62	41	21
Stock-based compensation expense		138	138
Net excess tax benefits from stock-based compensation		37	37
Cat Japan share redemption	[2]	18			30		(12)
Comprehensive income (loss)								684
Balance at Jun. 30, 2010		9,272	3,636	(10,539)	20,133	(4,045)	87
Balance at Dec. 31, 2010		10,864	3,888	(10,397)	21,384	(4,051)	40
Increase (Decrease) in Stockholders' Equity
Profit (loss) of consolidated and affiliated companies		2,265			2,240		25	2,265
Foreign currency translation, net of tax of $84 and $153 for the six months ended June 30, 2011 and 2010, respectively		322				312	10	322
Pension and other postretirement benefits
Amortization of actuarial (gain) loss, net of tax of $112 and $91 for the six months ended June 30, 2011 and 2010, respectively		207				205	2	207
Amortization of prior service (credit) cost, net of tax of $6		(10)				(10)		(10)
Amortization of transition (asset) obligation, net of tax of $0		1				1		1
Derivative financial instruments
Gains (losses) deferred, net of tax of $6 and $29 for the six months ended June 30, 2011 and 2010, respectively		(13)				(13)		(13)
(Gains) losses reclassified to earnings, net of tax of $0 and $19 for the six months ended June 30, 2011 and 2010, respectively		4				4		4
Available-for-sale securities
Gains (losses) deferred, net of tax of $5 and $11 for the six months ended June 30, 2011 and 2010, respectively		9				9		9
(Gains) losses reclassified to earnings, net of tax of $0		(1)				(1)		(1)
Dividends declared		(581)			(581)
Distribution to noncontrolling interests		(2)					(2)
Common shares issued from treasury stock for stock-based compensation: 7,243,608 and 4,716,874 for the six months ended June 30, 2011 and 2010, respectively		96	10	86
Stock-based compensation expense		111	111
Net excess tax benefits from stock-based compensation		156	156
Cat Japan share redemption	[2]	8			38		(30)
Comprehensive income (loss)								2,784
Balance at Jun. 30, 2011		$ 13,436	$ 4,165	$ (10,311)	$ 23,081	$ (3,544)	$ 45

[1] See Note 15 for additional information.

[2] See Note 16 regarding the Cat Japan share redemption.