Commitments and Contingencies, Guarantees (Details) - Payment or Performance Guarantee - Customer Loans for Farm Rewiring Program $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
Guarantee [Abstract]
Assets held as collateral	$ 0.0
Guarantees issued and outstanding	1.0	[1]
Current exposure under these guarantees	$ 0.1	[1]
Guarantee Expiration Date (year)	2020	[1]

[1] The debtor becomes the subject of bankruptcy or other insolvency proceedings.