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Mortgage Servicing Assets (Tables)

12 Months Ended

Dec. 31, 2023

Servicing Asset [Abstract]

Schedule of Changes in Carrying Amount of Mortgage Servicing Assets

Changes in the carrying amount of commercial mortgage servicing assets are summarized as follows:

Year ended December 31, Dollars in millions			2023			2022
Balance at beginning of period			$	653		$	634
Servicing retained from loan sales			87			106
Purchases			21			38
Amortization			(123)			(125)
Temporary recoveries (impairments)			—			—
Balance at end of period			$	638		$	653
Fair value at end of period			$	911		$	997

Changes in the carrying amount of residential mortgage servicing assets are summarized as follows:

Dollars in millions			2023			2022
Balance at beginning of period			$	106		$	93
Servicing retained from loan sales			12			23
Purchases			—			—
Amortization			(9)			(11)
Temporary recoveries (impairments)			(1)			1
Balance at end of period			$	108		$	106
Fair value at end of period			$	132		$	130

Schedule of Range and Weighted-Average of Significant Unobservable Inputs

The range and weighted-average of the significant unobservable inputs used to determine fair value our commercial mortgage servicing assets along with the valuation techniques, are shown in the following table:

dollars in millions						December 31, 2023									December 31, 2022
Valuation Technique			Significant Unobservable Input			Range						Weighted-Average			Range						Weighted-Average
Discounted cash flow			Expected defaults			1.00		%	2.00		%	1.01		%	0.97		%	2.00		%	1.07		%
			Residual cash flows discount rate			7.42		%	10.56		%	10.17		%	8.54		%	10.02		%	9.48		%
			Escrow earn rate			5.67		%	5.72		%	5.67		%	5.09		%	5.21		%	5.17		%
			Loan assumption rate			—		%	2.15		%	1.97		%	—		%	1.41		%	1.12		%

The range and weighted-average of the significant unobservable inputs used to fair value our residential mortgage servicing assets along with the valuation techniques, are shown in the following table:

						December 31, 2023									December 31, 2022
Valuation Technique			Significant Unobservable Input			Range						Weighted-Average			Range						Weighted-Average
Discounted cash flow			Prepayment speed			6.27		%	44.47		%	7.70		%	6.10		%	41.34		%	7.20		%
			Discount rate			6.50		%	8.75		%	6.59		%	7.50		%	8.50		%	7.53		%
			Servicing cost			$	70.00		$	3,582		$	75.02		$	62.00		$	4,375		$	67.05

X

- Definition

Schedule of estimation of fair value of servicing rights using key economic assumptions.

+ References

No definition available.

+ Details

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X

- Definition

Tabular disclosure of activity in the balance of servicing assets subsequently measured at amortized cost. Includes, but is not limited to, beginning and ending balances, additions, disposals, and amortization.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481229/860-50-50-4

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- References

No definition available.

+ Details

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