Derivative Financial Instruments and Risk Management (Details 5) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Offsetting Assets
Gross Amount of Recognized Assets	$ 107	$ 74
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	107	74
Financial Instruments	(36)	(32)
Cash Collateral Received	0	0
Net Amount of Assets	71	42
Machinery, Energy & Transportation
Offsetting Assets
Gross Amount of Recognized Assets	24	52
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	24	52
Financial Instruments	(23)	(22)
Cash Collateral Received	0	0
Net Amount of Assets	1	30
Financial Products
Offsetting Assets
Gross Amount of Recognized Assets	83	22
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	83	22
Financial Instruments	(13)	(10)
Cash Collateral Received	0	0
Net Amount of Assets	$ 70	$ 12