Mortgage Servicing Rights (Details Textuals) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Mortgage Servicing Rights (Textuals) [Abstract]
Commercial and residential reverse mortgage MSRs, total	$ 270	$ 278

Name:

bac_ReverseMortgageServicingRightsCommercialAndResidential

Namespace Prefix:

bac

Data Type:

xbrli:monetaryItemType

Balance Type:

credit

Period Type:

instant