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Cover [Abstract] Cover [Abstract] Depositary Shares, each representing a 1/1,200th interest in a share of Bank of America Corporation Floating Rate Non-Cumulative Preferred Stock, Series 2 Series 2 Preferred Stock [Member] Series Two Preferred Stock member. Document Period End Date Document Period End Date Document Information [Table] Document Information [Table] Pre-commencement Tender Offer Pre-commencement Tender Offer Class of Stock [Axis] Class of Stock [Axis] Entity Central Index Key Entity Central Index Key Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Tax Identification Number Entity Tax Identification Number Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Depositary Shares, each representing a 1/1,000th interest in a share of 4.750% Non-Cumulative Preferred Stock, Series SS Depositary Shares, each representing a 1/1,000th interest in a share of 4.750% Non-Cumulative Preferred Stock, Series SS [Member] Depositary Shares, each representing a 1/1,000th interest in a share of 4.750% Non-Cumulative Preferred Stock, Series SS Common Stock, par value $0.01 per share Common Stock [Member] Depositary Shares, each representing a 1/1,000th interest in a share of 4.125% Non-Cumulative Preferred Stock, Series PP Series PP Preferred Stock [Member] Series PP Preferred Stock Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Depositary Shares, each representing a 1/1,000th interest in a share of 4.250% Non-Cumulative Preferred Stock, Series QQ Series QQ Preferred Stock [Member] Series QQ Preferred Stock Title of 12(b) Security Title of 12(b) Security Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Address, City or Town Entity Address, City or Town Senior Medium-Term Notes, Series A, Step Up Callable Notes, due November 28, 2031 of BofA Finance LLC (and the guarantee of the Registrant with respect thereto) Senior Medium-Term Notes, Series A, Step Up Callable Notes [Member] Senior Medium-Term Notes, Series A, Step Up Callable Notes [Member] Document Type Document Type Depositary Shares, each representing a 1/1,000th interest in a share of 4.375% Non-Cumulative Preferred Stock, Series NN Series NN Preferred Stock [Member] Series NN Preferred Stock