CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($)	3 Months Ended			9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020		Jun. 30, 2021		Jun. 30, 2020
Net income (loss)	$ 269,000,000	$ 205,000,000		$ 909,000,000		$ 652,000,000
Other comprehensive income (loss)
Net unrealized gain (loss) on cash flow hedges	35,000,000	31,000,000		158,000,000		(56,000,000)
Reclassification to earnings from cash flow hedges	(64,000,000)	(7,000,000)	[1]	(114,000,000)	[1]	(10,000,000)
Total other comprehensive income (loss)	(29,000,000)	24,000,000		44,000,000		(66,000,000)
Total comprehensive income (loss)	$ 240,000,000	$ 229,000,000		$ 953,000,000		$ 586,000,000

[1] There were no amounts excluded from effectiveness testing for any of the periods presented. Based on forecasted foreign currency exchange rates, TVA expects to reclassify approximately $15 million of gains from AOCI to Interest expense within the next 12 months to offset amounts anticipated to be recorded in Interest expense related to exchange gain on the debt.