Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2023

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Summary of Actual Capital Amounts and Capital Ratios

The following schedule presents our capital amounts and ratios and the minimum requirements to be well-capitalized under Basel III at December 31, 2023 and 2022:

(Dollar amounts in millions)	December 31, 2023				Minimum requirement to be “well-capitalized”
	Amount		Ratio		Amount		Ratio
Basel III Regulatory Capital Amounts and Ratios
Common equity Tier 1 capital (to risk-weighted assets)	$	6,863	10.3	%	$	4,351	6.5	%
Tier 1 capital (to risk-weighted assets)	7,303		10.9		5,355		8.0
Total capital (to risk-weighted assets)	8,553		12.8		6,693		10.0
Tier 1 leverage ratio	7,303		8.3		4,379		5.0

	December 31, 2022				Minimum requirement to be “well-capitalized”
(Dollar amounts in millions)	Amount		Ratio		Amount		Ratio
Basel III Regulatory Capital Amounts and Ratios
Common equity Tier 1 capital (to risk-weighted assets)	$	6,481	9.8	%	$	4,297	6.5	%
Tier 1 capital (to risk-weighted assets)	6,921		10.5		5,289		8.0
Total capital (to risk-weighted assets)	8,077		12.2		6,611		10.0
Tier 1 leverage ratio	6,921		7.7		4,472		5.0

The following schedule presents the minimum capital ratios and capital conservation buffer requirements, compared with our capital ratios at December 31, 2023:

	December 31, 2023
	Minimum capital requirement		Capital conservation buffer		Minimum capital ratio requirement with capital conservation buffer		Current capital ratio
CET1 to risk-weighted assets	4.5	%	2.5	%	7.0	%	10.3	%
Tier 1 capital (i.e., CET1 plus additional Tier 1 capital) to risk-weighted assets	6.0		2.5		8.5		10.9
Total capital (i.e., Tier 1 capital plus Tier 2 capital) to risk-weighted assets	8.0		2.5		10.5		12.8
Tier 1 capital to average consolidated assets (known as the “Tier 1 leverage ratio”)	4.0		N/A		4.0		8.3