Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement Of Partners Capital [Abstract]
Net income	$ 646,596	$ 495,460	$ 1,226,292	$ 1,400,778
Other comprehensive income (loss), net of tax and reclassification adjustments:
Net unrealized losses on investment securities	(218,852)	(9,314)	(425,770)	(39,808)
Cash flow hedges adjustments	(172,285)	(38,038)	(344,534)	(152,175)
Foreign currency translation adjustments	(5,359)	(1,579)	(11,271)	(886)
Defined benefit plans liability adjustments	2,993	15,486	9,160	45,482
Total other comprehensive income (loss)	(393,503)	(33,445)	(772,415)	(147,387)
Total comprehensive income	$ 253,093	$ 462,015	$ 453,877	$ 1,253,391