Derivative Financial Instruments and Risk Management (Details 5) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Offsetting Assets
Gross Amount of Recognized Assets	$ 158	$ 74
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	158	74
Financial Instruments	(49)	(32)
Cash Collateral Received	0	0
Net Amount of Assets	109	42
Machinery, Energy & Transportation
Offsetting Assets
Gross Amount of Recognized Assets	18	52
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	18	52
Financial Instruments	(18)	(22)
Cash Collateral Received	0	0
Net Amount of Assets	0	30
Financial Products
Offsetting Assets
Gross Amount of Recognized Assets	140	22
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	140	22
Financial Instruments	(31)	(10)
Cash Collateral Received	0	0
Net Amount of Assets	$ 109	$ 12