Income Taxes - Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Losses on loans and other assets	$ 640,520	$ 395,784	$ 471,767
Operating lease liabilities	182,638	110,023	121,216
Retirement benefits			26,185
Postretirement and other employee benefits		31,760	28,004
Incentive and other compensation plans	33,936	24,713	18,984
Unrealized losses	115,024
Interest on loans	53,792
Losses on cash flow hedges	87,164
Stock-based compensation	51,366	32,675	29,507
Other	81,498	52,351	66,763
Gross deferred tax assets	1,245,938	647,306	762,426
Right of use assets and other leasing transactions	(367,137)	(249,209)	(285,311)
Unrealized gains		(27,066)	(50,785)
Retirement benefits	87,486	(45,402)
Capitalized servicing rights	(51,273)	(53,219)	(50,235)
Postretirement and other employee benefits	(29,230)
Depreciation and amortization	155,048	(93,103)	(95,684)
Interest on loans		(6,690)	(8,113)
Gains on cash flow hedges		(22,820)	(97,004)
Other	69,314	(88,053)	(62,581)
Gross deferred tax liabilities	(759,488)	(585,562)	(649,713)
Net deferred tax asset	$ 486,450	$ 61,744	$ 112,713

Deferred tax asset interest on loans.

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Deferred tax assets losses on cash flow hedges.

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Amount of deferred tax asset attributable to taxable temporary differences from losses on loans and other assets.

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Deferred tax assets operating lease liabilities.

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Amount of deferred tax asset attributable to taxable temporary differences from deferred expense compensation and benefits postretirement and other employee benefits.

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Deferred tax assets unrealized losses investment securities.

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Deferred tax liabilities interest on loans.

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Deferred tax liabilities retirement benefits.

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Deferred tax liabilities tax deferred expense compensation and benefits postretirement and other employee benefits.

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Amount of deferred tax liability attributable to taxable temporary differences from unrealized gains on investment securities.

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Deferred tax liability depreciation and amortization

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Deferred tax liability gains on cash flow hedges.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences from mortgage servicing rights.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

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