Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			$ 1,544	$ 1,816	$ 1,816
Amortization	$ (60)	$ (60)	(120)	(121)	(238)
Foreign currency translation			11		(34)
Ending balance	1,435		1,435		1,544
Investment Servicing
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			1,495	1,746	1,746
Amortization			(109)		(217)
Foreign currency translation			11		(34)
Ending balance	1,397		1,397		1,495
Investment Management
Finite-lived Intangible Assets [Roll Forward]
Beginning balance			49	$ 70	70
Amortization			(11)		(21)
Foreign currency translation			0		0
Ending balance	$ 38		$ 38		$ 49

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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