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VARIABLE INTEREST ENTITIES - Income Statement Effect (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Provision for income taxes:        
Amortization of LIHTC investments under proportional method $ 3 $ 4 $ 7 $ 7
Low-income housing tax credits (4) (4) (8) (7)
Other tax benefits related to tax credit investments 0 (1) (1) (2)
Total impact on provision for income taxes $ (1) $ (1) $ (2) $ (2)