XML 22 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
DEI Document
shares in Millions
 3 Months Ended
Dec. 31, 2021
shares
Document Information [Line Items]  
Entity Registrant Name TENNESSEE VALLEY AUTHORITY
Entity Central Index Key 0001376986
Current Fiscal Year End Date --09-30
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Document Type 10-Q
Document Period End Date Dec. 31, 2021
Document Fiscal Year Focus 2022
Document Fiscal Period Focus Q1
Amendment Flag false
Entity Common Stock, Shares Outstanding 0
Entity Current Reporting Status Yes
Entity Shell Company false
Document Quarterly Report true
Document Transition Report false
Local Phone Number 632-2101
City Area Code (865)
Entity Address, Postal Zip Code 37902 (Zip Code)
Entity Tax Identification Number 62-0474417
Entity File Number 000-52313
Entity Address, Address Line One 400 W. Summit Hill Drive
Entity Address, City or Town Knoxville
Entity Address, State or Province TN
Entity Incorporation, State or Country Code X1
Entity Interactive Data Current Yes