Derivative Financial Instruments and Risk Management (Details 6) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Offsetting Liabilities
Gross Amount of Recognized Liabilities	$ (144)	$ (93)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(144)	(93)
Financial Instruments	36	32
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(108)	(61)
Machinery, Energy & Transportation
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(105)	(25)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(105)	(25)
Financial Instruments	23	22
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(82)	(3)
Financial Products
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(39)	(68)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(39)	(68)
Financial Instruments	13	10
Cash Collateral Pledged	0	0
Net Amount of Liabilities	$ (26)	$ (58)