XML 198 R108.htm IDEA: XBRL DOCUMENT v3.23.3
Benefit Plans Amounts Recognized on TVA's Consolidated Balance Sheets (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Defined Benefit Plan Disclosure      
Regulatory assets $ (5,566) $ (6,134)  
Non-current regulatory liabilities (107) (172)  
Accounts payable and accrued liabilities (2,618) (2,466)  
Pension and post-retirement benefit obligations (2,527) (3,072)  
Postemployment benefits liability, noncurrent 266 299  
Pension Benefits      
Defined Benefit Plan Disclosure      
Amount capitalized due to actions of regulator 0 77  
Regulatory assets (1,440) (1,839)  
Accounts payable and accrued liabilities (6) (6)  
Pension and post-retirement benefit obligations [1] (1,964) (2,436)  
Other Post-retirement Benefits      
Defined Benefit Plan Disclosure      
Amount capitalized due to actions of regulator 0 0  
Regulatory assets (95) (70)  
Non-current regulatory liabilities (95)    
Accounts payable and accrued liabilities (21) (22)  
Pension and post-retirement benefit obligations [1] (326) (366)  
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent      
Defined Benefit Plan Disclosure      
Postemployment benefits liability, noncurrent $ 237 $ 270 $ 340
[1] The table above excludes $237 million and $270 million of post-employment benefit costs that are recorded in Post-retirement and post-employment benefit obligations on the Consolidated Balance Sheets at September 30, 2023 and 2022, respectively.