Commitments and Contingencies, Guarantees (Details)	Dec. 31, 2020 USD ($)
Guarantee [Abstract]
Guarantees issued and outstanding	$ 0
Current exposure under these guarantees	0	[1]
Payment or Performance Guarantee | Customer Loans for Farm Rewiring Program
Guarantee [Abstract]
Guarantees issued and outstanding	$ 1,000,000	[1]

[1] As of Dec. 31, 2020, no claims were outstanding against the guarantee.