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Variable Interest Entities (Tables)
12 Months Ended
May 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Variable Interest Entities [Table Text Block]
The following table presents, by component, our consolidated membership after taking into consideration systems that are members of both CFC and NCSC and eliminating memberships between CFC, NCSC and RTFC as of May 31, 2017.

 
 
May 31, 2017
Members:
 
 
Distribution systems
 
839

Power supply systems
 
70

Telecommunications members
 
488

Statewide and regional associations
 
63

National association of cooperatives
 
1

Total members
 
1,461

Associates
 
219

Total
 
1,680