FHLBNY ADVANCES - Narrative (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
FHLBNY ADVANCES
Borrowings total	$ 1,130,000,000	$ 25,000,000,000.0
Average interest rate on outstanding FHLBNY	4.55%	0.35%
Borrowings	$ 4,130,000,000	$ 4,190,000,000
Callable advances	0
FHLBNY advances with an overnight contractual maturity	$ 0