(Millions, except percentages)			CET 1 capital		Tier 1capital		Total capital	CET 1 Capital ratio		Tier 1capital ratio		Total capital ratio		Tier 1 leverage ratio
December 31, 2016:^(a)
	American Express Company	$	16,134	$	17,665	$	19,893	12.3	%	13.5	%	15.2	%	11.6	%
	American Express Centurion Bank		6,134		6,134		6,600	16.5		16.5		17.8		16.2
	American Express Bank, FSB		6,681		6,681		7,194	16.3		16.3		17.5		13.9
December 31, 2015:^(a)
	American Express Company	$	16,747	$	18,265	$	20,551	12.4	%	13.5	%	15.2	%	11.7	%
	American Express Centurion Bank		6,013		6,013		6,460	16.9		16.9		18.2		17.7
	American Express Bank, FSB		6,927		6,927		7,601	13.7		13.7		15.1		13.2

Well-capitalized ratios^(b)								6.5	%	8.0	%	10.0	%	5.0	% ^(c)
Minimum capital ratios^(b)								4.5	%	6.0	%	8.0	%	4.0	%

As a Basel III advanced approaches institution in parallel run, capital ratios are reported using Basel III capital definitions, inclusive of transition provisions, and risk-weighted assets using the Basel III standardized approach.
As defined by the regulations issued by the Federal Reserve, OCC and FDIC for the year ended December 31, 2016.
Represents requirements for banking subsidiaries to be considered “well-capitalized” pursuant to regulations issued under the Federal Deposit Insurance Corporation Improvement Act. There is no CET1 capital ratio or Tier 1 leverage ratio requirement for a bank holding company to be considered “well-capitalized.”