Segment Information (Details 6) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Items not included in segment capital expenditures:
All other operating segments	$ 64	$ 38
Cost centers	38	15
Timing	402	314
Other	(110)	(7)
Total capital expenditures	1,129	760
Reportable segments
Segment Reporting Information, Capital Expenditure
Total accountable capital expenditures from reportable segments	735	400
Machinery and Power Systems
Items not included in segment capital expenditures:
All other operating segments	64	38
Cost centers	38	15
Timing	402	314
Other	(32)	(19)
Total capital expenditures	864	568
Machinery and Power Systems | Reportable segments
Segment Reporting Information, Capital Expenditure
Total accountable capital expenditures from reportable segments	392	220
Financial Products
Items not included in segment capital expenditures:
Other	17	33
Total capital expenditures	360	213
Financial Products | Reportable segments
Segment Reporting Information, Capital Expenditure
Total accountable capital expenditures from reportable segments	343	180
Consolidating Adjustments
Items not included in segment capital expenditures:
Other	(95)	(21)
Total capital expenditures	$ (95)	$ (21)