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Variable Interest Entities (VIEs) (Impact Of VIEs On The Consolidated Statements Of Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Variable Interest Entity
Provision for income taxes	$ 76	$ 93	$ 125	$ 191
Variable Interest Entity
Variable Interest Entity
Provision for income taxes	(4)	(3)	(7)	(6)
Low income housing tax credits | Variable Interest Entity
Variable Interest Entity
Provision for income taxes, amortization of LIHTC investments	18	18	35	35
Provision for income taxes, affordable housing tax credits and other tax benefits	(17)	(17)	(33)	(33)
Other tax benefits related to tax credit entities | Variable Interest Entity
Variable Interest Entity
Provision for income taxes, affordable housing tax credits and other tax benefits	$ (5)	$ (4)	$ (9)	$ (8)

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Amount of affordable housing tax credits and other tax benefits recognized.

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Amount of amortization expense of investment in qualified affordable housing projects.

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