Derivative Financial Instruments and Risk Management (Details 6) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Offsetting Liabilities
Gross Amount of Recognized Liabilities	$ (67)	$ (167)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(67)	(167)
Financial Instruments	38	28
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(29)	(139)
Machinery, Energy & Transportation
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(28)	(159)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(28)	(159)
Financial Instruments	24	21
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(4)	(138)
Financial Products
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(39)	(8)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Liabilities Presented in the Statement of Financial Position	(39)	(8)
Financial Instruments	14	7
Cash Collateral Pledged	0	0
Net Amount of Liabilities	$ (25)	$ (1)