v3.26.1
Retained Earnings and Regulatory Capital Requirements (Tables)
 6 Months Ended
Jun. 30, 2026
Retained Earnings Note Disclosure [Abstract]  
Capital Amounts and Ratios in Accordance With Current Banking Regulations The following table summarizes the capital amounts and ratios of HSBC USA and HSBC Bank USA, calculated in accordance with the Basel III rule:
June 30, 2026December 31, 2025
  
Well-Capitalized
Ratio(1)
Capital
Amount		Actual
Ratio		Capital
Amount		Actual
Ratio
(dollars are in billions)
Common equity Tier 1 ratio:
HSBC USA4.5 %
(2)
$13.4 12.1 %$13.1 12.1 %
HSBC Bank USA6.5 16.0 15.9 15.6 15.9 
Tier 1 capital ratio:
HSBC USA6.0 13.7 12.3 13.3 12.4 
HSBC Bank USA8.0 17.5 17.4 17.1 17.5 
Total capital ratio:
HSBC USA10.0 15.9 14.3 15.6 14.4 
HSBC Bank USA10.0 19.4 19.3 19.0 19.4 
Tier 1 leverage ratio:
HSBC USA4.0 
(2)
13.7 7.6 13.3 7.7 
HSBC Bank USA5.0 17.5 10.2 17.1 10.3 
Risk-weighted assets:(3)
HSBC USA111.2 107.9 
HSBC Bank USA100.8 97.8 
Adjusted quarterly average assets:(4)
HSBC USA179.3 173.9 
HSBC Bank USA171.5 166.2 
(1)HSBC USA and HSBC Bank USA are categorized as "well-capitalized," as defined by their principal regulators. To be categorized as well-capitalized under regulatory guidelines, a banking institution must maintain capital equal to or in excess of the ratios reflected in the above table, and must not be subject to a directive, order, or written agreement to meet and maintain specific capital levels.
(2)There are no common equity Tier 1 or Tier 1 leverage ratio components in the definition of a well-capitalized bank holding company. The ratios shown are the regulatory minimums.
(3)Calculated using the Standardized Approach.
(4)Represents the Tier 1 leverage ratio denominator which reflects quarterly average assets adjusted for amounts permitted to be deducted from Tier 1 capital.