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Impact of New Accounting Standards and Interpretations
 3 Months Ended
Dec. 31, 2014
Accounting Changes and Error Corrections [Abstract]  
Impact of New Accounting Standards and Interpretations
Impact of New Accounting Standards and Interpretations

The following accounting standard became effective for TVA on October 1, 2014.

Liabilities. In February 2013, the Financial Accounting Standards Board ("FASB") issued ASU 2013-04, "Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date," which defines how entities measure obligations from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date and for which no guidance exists, except for obligations addressed within existing guidance in GAAP. The guidance also requires entities to disclose the nature and amount of the obligation as well as other information about those obligations. The standard became effective for TVA on October 1, 2014, and is applied on a retrospective basis for all comparative periods presented. Adoption of this guidance did not have a material impact on TVA’s financial condition, results of operations, or cash flows.

The following accounting standard has been issued, but as of December 31, 2014, was not effective and had not been adopted by TVA.

Revenue Recognition.  In May 2014, the FASB issued a new revenue recognition standard that applies to revenue from contracts with customers. The standard requires that an entity recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.  The standard becomes effective for TVA on October 1, 2017, and allows for either a full retrospective or a modified retrospective application.  Early adoption of the standard is not permitted. TVA is currently evaluating the potential impact of these changes on its consolidated financial statements and related disclosures and the application method to be used.