Derivative Financial Instruments and Risk Management (Details 5) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Offsetting Assets
Gross Amount of Recognized Assets	$ 170	$ 211
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	170	211
Financial Instruments	(46)	(41)
Cash Collateral Received	0	0
Net Amount of Assets	124	170
Machinery, Energy & Transportation
Offsetting Assets
Gross Amount of Recognized Assets	51	73
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	51	73
Financial Instruments	(39)	(32)
Cash Collateral Received	0	0
Net Amount of Assets	12	41
Financial Products
Offsetting Assets
Gross Amount of Recognized Assets	119	138
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	119	138
Financial Instruments	(7)	(9)
Cash Collateral Received	0	0
Net Amount of Assets	$ 112	$ 129