Regulatory Matters (Tables)

6 Months Ended

Jun. 30, 2020

Banking and Thrift, Other Disclosures [Abstract]

Regulatory Capital Ratios

The following tables present the regulatory capital ratios as of the dates indicated:

Flagstar Bancorp	Actual				For Capital Adequacy Purposes				Well-Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(Dollars in millions)
June 30, 2020
Tier 1 capital (to adjusted avg. total assets)	$	2,021	7.8	%	$	1,042	4.0	%	$	1,301	5.0	%
Common equity Tier 1 capital (to RWA)	$	1,781	9.1	%	$	880	4.5	%	$	1,272	6.5	%
Tier 1 capital (to RWA)	$	2,021	10.3	%	$	1,174	6.0	%	$	1,565	8.0	%
Total capital (to RWA)	$	2,214	11.3	%	$	1,565	8.0	%	$	1,956	10.0	%
December 31, 2019
Tier 1 capital (to adjusted avg. total assets)	$	1,720	7.6	%	$	909	4.0	%	$	1,136	5.0	%
Common equity Tier 1 capital (to RWA)	$	1,480	9.3	%	$	715	4.5	%	$	1,033	6.5	%
Tier 1 capital (to RWA)	$	1,720	10.8	%	$	953	6.0	%	$	1,271	8.0	%
Total capital (to RWA)	$	1,830	11.5	%	$	1271	8.0	%	$	1,589	10.0	%

Flagstar Bank	Actual				For Capital Adequacy Purposes				Well-Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(Dollars in millions)
June 30, 2020
Tier 1 capital (to adjusted avg. total assets)	$	1,969	7.6	%	$	1,041	4.0	%	$	1,301	5.0	%
Common equity Tier 1 capital (to RWA)	$	1,969	10.1	%	$	880	4.5	%	$	1,271	6.5	%
Tier 1 capital (to RWA)	$	1,969	10.1	%	$	1,174	6.0	%	$	1,565	8.0	%
Total capital (to RWA)	$	2,161	11.0	%	$	1,565	8.0	%	$	1,956	10.0	%
December 31, 2019
Tier 1 capital (to adjusted avg. total assets)	$	1,752	7.7	%	$	909	4.0	%	$	1,136	5.0	%
Common equity Tier 1 capital (to RWA)	$	1,752	11.0	%	$	714	4.5	%	$	1,032	6.5	%
Tier 1 capital (to RWA)	$	1,752	11.0	%	$	952	6.0	%	$	1,270	8.0	%
Total capital (to RWA)	$	1,862	11.7	%	$	1,270	8.0	%	$	1,587	10.0	%