CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 312,031	$ 258,329	$ 634,470	$ 495,981
Other comprehensive loss, net of tax:
Net changes in unrealized (losses) gains on AFS debt securities	(43,618)	(192,878)	7,701	(362,148)
Reclassification of unrealized losses on debt securities transferred from AFS to HTM	0	0	0	(112,991)
Amortization of unrealized losses on debt securities transferred from AFS to HTM	2,816	3,750	5,578	6,061
Net changes in unrealized losses on cash flow hedges	(53,887)	(6,380)	(25,274)	(31,103)
Foreign currency translation adjustments	(7,249)	(10,215)	(4,308)	(10,086)
Other comprehensive loss	(101,938)	(205,723)	(16,303)	(510,267)
COMPREHENSIVE INCOME (LOSS)	$ 210,093	$ 52,606	$ 618,167	$ (14,286)