Collateralized Agreements and Financings - Offsetting Arrangements (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Collateralized Agreements And Financings [Abstract]
Resale agreements, Gross carrying value	$ 274,034	$ 334,725
Resale agreements, Counterparty Netting	(91,532)	(129,022)
Resale agreements	182,502	205,703
Resale agreements, Counterparty Netting	(23,623)	(27,376)
Resale agreements, Collateral	(152,988)	(173,915)
Resale agreements	5,891	4,412
Securities borrowed, Gross carrying value	198,548	190,197
Securities borrowed, Counterparty Netting	(1,580)	(11,426)
Securities borrowed	196,968	178,771
Securities borrowed, Counterparty Netting	(7,827)	(12,822)
Securities borrowed, Collateral	(177,823)	(157,752)
Securities borrowed	11,318	8,197
Repurchase agreements, Gross carrying value	251,222	294,905
Repurchase agreements, Counterparty Netting	(91,532)	(129,022)
Repurchase agreements	159,690	165,883
Repurchase agreements, Counterparty Netting	(23,623)	(27,376)
Repurchase agreements, Collateral	(133,537)	(134,465)
Repurchase agreements	2,530	4,042
Securities loaned, Gross carrying value	45,402	57,931
Securities loaned, Counterparty Netting	(1,580)	(11,426)
Securities loaned	43,822	46,505
Securities loaned, Counterparty Netting	(7,827)	(12,822)
Securities loaned, Collateral	(34,824)	(33,143)
Securities loaned	$ 1,171	$ 540

Collateralized agreements and financings.

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