Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Partners Capital [Abstract]
Net income	$ 217,522	$ 458,069	$ 579,696	$ 905,318
Other comprehensive income (loss), net of tax and reclassification adjustments:
Net unrealized losses on investment securities	(70,551)	(8,088)	(206,918)	(30,494)
Cash flow hedges adjustments	(58,188)	(47,360)	(172,249)	(114,137)
Foreign currency translation adjustments	(4,264)	145	(5,912)	693
Defined benefit plans liability adjustments	3,898	16,807	6,167	29,996
Total other comprehensive income (loss)	(129,105)	(38,496)	(378,912)	(113,942)
Total comprehensive income	$ 88,417	$ 419,573	$ 200,784	$ 791,376