Loans and Commitments (Details 2) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014		May 31, 2013		Feb. 28, 2013
Payment Status of Loans
Current	$ 20,626,754		$ 20,280,157
30-89 days past due	0		7,004
90 days or more past due	8,579	[1]	9,156	[1]
Total past due	8,579		16,160
Total financing receivables	20,635,333	[2],[3]	20,296,317	[2],[3]	19,477,734
Non-accrual loans	18,429		23,081
As a % of total loans
Current	99.96%		99.92%
30-89 days past due	0.00%		0.03%
90 days or more past due	0.04%	[1]	0.05%	[1]
Total past due	0.04%		0.08%
Total financing receivables	100.00%		100.00%
Non-accrual loans	0.09%		0.11%
RTFC
Payment Status of Loans
Current	451,913		495,040
30-89 days past due	0		4,163
90 days or more past due	3,579	[1]	4,156	[1]
Total past due	3,579		8,319
Total financing receivables	455,492	[2]	503,359	[2]
Non-accrual loans	5,395		10,497
NCSC
Payment Status of Loans
Current	779,295		773,141
30-89 days past due	0		0
90 days or more past due	0	[1]	0	[1]
Total past due	0		0
Total financing receivables	779,295	[2]	773,141	[2]
Non-accrual loans	450		0
CFC
Payment Status of Loans
Current	19,395,546		19,011,976
30-89 days past due	0		2,841
90 days or more past due	5,000	[1]	5,000	[1]
Total past due	5,000		7,841
Total financing receivables	19,400,546	[2],[3]	19,019,817	[2],[3]	19,445,360
Non-accrual loans	12,584		12,584
CFC | Distribution
Payment Status of Loans
Current	15,186,620		14,938,351
30-89 days past due	0		2,841
90 days or more past due	0	[1]	0	[1]
Total past due	0		2,841
Total financing receivables	15,186,620		14,941,192
Non-accrual loans	7,584		7,584
CFC | Power supply
Payment Status of Loans
Current	4,144,104		4,002,669
30-89 days past due	0		0
90 days or more past due	5,000	[1]	5,000	[1]
Total past due	5,000		5,000
Total financing receivables	4,149,104		4,007,669
Non-accrual loans	5,000		5,000
CFC | Statewide and associate
Payment Status of Loans
Current	64,822		70,956
30-89 days past due	0		0
90 days or more past due	0	[1]	0	[1]
Total past due	0		0
Total financing receivables	64,822	[3]	70,956	[3]
Non-accrual loans	$ 0		$ 0

[1] All loans 90 days or more past due are on non-accrual status.

[2] Excludes deferred origination costs of $10 million at February 28, 2014 and May 31, 2013.

[3] Includes nonperforming and restructured loans.