Divestitures and Assets Held for Sale (Details 2) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Bucyrus Distribution Business	Jun. 30, 2012 Bucyrus Distribution Business	Jul. 31, 2012 Third Party Logistics Business
Current Assets Held-for-sale
Receivables - trade and other	$ 0	$ 25
Inventories	96	109
Current assets	96	134
Non-current Assets Held-for-sale
Property, plant and equipment - net	36	28
Intangible assets	105	186
Goodwill	168	296
Non-current assets	309	510
Current Assets Disposed of as Part of Divestiture
Cash and short-term investments					8
Receivables - trade and other					204
Prepaid expenses and other current assets					5
Inventories					8
Current assets					225
Non-current Assets Disposed of as Part of Divestiture
Property, plant and equipment - net					163
Intangible assets			30	146	1
Other assets			50	117	59
Non-current assets					223
Current Liabilities Disposed of as Part of Divestiture
Accounts payable					18
Accrued expenses					17
Accrued wages, salaries and employee benefits					15
Current liabilities					50
Long-term Liabilities Disposed of as Part of Divestiture
Liability For postemployment benefits					58
Other liabilities					40
Long-term liabilities					$ 98