XML 129 R107.htm IDEA: XBRL DOCUMENT v3.19.3
Benefit Plans Amounts Recognized on TVA's Consolidated Balance Sheets (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Sep. 30, 2018
Defined Benefit Plan Disclosure    
Regulatory assets $ 8,763 $ 6,612
Non-current regulatory liabilities 0 (104)
Accounts payable and accrued liabilities (1,812) (1,982)
Pension and post-retirement benefit obligations (6,181) (4,476)
Pension Benefits    
Defined Benefit Plan Disclosure    
Amount capitalized due to actions of regulator 95 96
Regulatory assets 4,731 3,119
Accounts payable and accrued liabilities (5) (6)
Pension and post-retirement benefit obligations [1] (5,327) (3,716)
Other Post-retirement Benefits    
Defined Benefit Plan Disclosure    
Amount capitalized due to actions of regulator 0 0
Regulatory assets   73
Non-current regulatory liabilities (25)  
Accounts payable and accrued liabilities (28) (28)
Pension and post-retirement benefit obligations [1] (471) (400)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent    
Defined Benefit Plan Disclosure    
Postemployment benefits liability, noncurrent $ 383 $ 360
[1] The table above excludes $383 million and $360 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, 2019 and 2018, respectively.