Derivative Financial Instruments and Risk Management (Details 5) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Offsetting Assets
Gross Amount of Recognized Assets	$ 82	$ 74
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	82	74
Financial Instruments	(13)	(32)
Cash Collateral Received	0	0
Net Amount of Assets	69	42
Machinery, Energy & Transportation
Offsetting Assets
Gross Amount of Recognized Assets	65	52
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	65	52
Financial Instruments	(9)	(22)
Cash Collateral Received	0	0
Net Amount of Assets	56	30
Financial Products
Offsetting Assets
Gross Amount of Recognized Assets	17	22
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	17	22
Financial Instruments	(4)	(10)
Cash Collateral Received	0	0
Net Amount of Assets	$ 13	$ 12