Segment Information (Details 5) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Items not included in segment depreciation and amortization:
All other operating segments	$ 42	$ 43
Cost centers	34	19
Other	(2)	(7)
Total depreciation and amortization	723	661
Reportable segments
Items not included in segment depreciation and amortization:
Total depreciation and amortization	649	606
Machinery and Power Systems
Items not included in segment depreciation and amortization:
All other operating segments	42	43
Cost centers	34	19
Other	(7)	(12)
Total depreciation and amortization	538	482
Machinery and Power Systems | Reportable segments
Items not included in segment depreciation and amortization:
Total depreciation and amortization	469	432
Financial Products
Items not included in segment depreciation and amortization:
All other operating segments	0	0
Cost centers	0	0
Other	5	5
Total depreciation and amortization	185	179
Financial Products | Reportable segments
Items not included in segment depreciation and amortization:
Total depreciation and amortization	$ 180	$ 174