Bank of America Corporation Quarterly report pursuant to Section 13 or 15(d)

Securities - Expected Maturity (Details)

Securities - Expected Maturity (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due in One Year or Less, Amount	$ 58
Due in One Year or Less, Yield	1.34%
Due after One Year through Five Years, Amount	27,843
Due after One Year through Five Years, Yield	2.30%
Due after Five Years through Ten Years, Amount	31,878
Due after Five Years though Ten Years, Yield	2.20%
Due after Ten Years, Amount	36
Due after Ten Years, Yield	4.37%
Amortized Cost	59,815us-gaap_HeldToMaturitySecurities	59,766us-gaap_HeldToMaturitySecurities
Total, Yield	2.30%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities Carried at Fair Value	324,174bac_DebtSecuritiesCarriedAtFairValue	320,695bac_DebtSecuritiesCarriedAtFairValue
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Due in One Year or Less, Amount	58
Due after One Year through Five Years, Amount	28,178
Due after Five Years though Ten Years, Amount	31,618
Due after Ten Years, Amount	35
Held-to-maturity Securities, Fair Value	59,889	59,641
U.S. Treasury and agency securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	581
Due in One Year or Less, Yield	0.39%
Due after One Year through Five Years, Amount	51,591
Due after One Year through Five Years, Yield	1.60%
Due after Five Years though Ten Years, Amount	6,327
Due after Five Years though Ten Years, Yield	2.20%
Due after Ten Years, Amount	1,242
Due after Ten Years, Yield	2.70%
Total, Amount	59,741
Total, Yield	1.69%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	582
Due after One Year through Five Years, Amount	52,450
Due after Five Years though Ten Years, Amount	6,481
Due after Ten Years, Amount	1,275
Debt Securities Carried at Fair Value	60,788
Agency
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	36
Due in One Year or Less, Yield	4.50%
Due after One Year through Five Years, Amount	51,571
Due after One Year through Five Years, Yield	2.50%
Due after Five Years though Ten Years, Amount	142,841
Due after Five Years though Ten Years, Yield	2.80%
Due after Ten Years, Amount	444
Due after Ten Years, Yield	2.90%
Total, Amount	194,892
Total, Yield	2.70%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	37
Due after One Year through Five Years, Amount	52,587
Due after Five Years though Ten Years, Amount	144,437
Due after Ten Years, Amount	447
Debt Securities Carried at Fair Value	197,508
Agency-collateralized mortgage obligations
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	653
Due in One Year or Less, Yield	0.50%
Due after One Year through Five Years, Amount	7,815
Due after One Year through Five Years, Yield	2.40%
Due after Five Years though Ten Years, Amount	5,227
Due after Five Years though Ten Years, Yield	2.80%
Due after Ten Years, Amount	1
Due after Ten Years, Yield	0.60%
Total, Amount	13,696
Total, Yield	2.50%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	655
Due after One Year through Five Years, Amount	7,926
Due after Five Years though Ten Years, Amount	5,379
Due after Ten Years, Amount	1
Debt Securities Carried at Fair Value	13,961
Non-agency residential
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	500
Due in One Year or Less, Yield	4.10%
Due after One Year through Five Years, Amount	1,620
Due after One Year through Five Years, Yield	4.79%
Due after Five Years though Ten Years, Amount	1,180
Due after Five Years though Ten Years, Yield	4.48%
Due after Ten Years, Amount	4,362
Due after Ten Years, Yield	7.99%
Total, Amount	7,662
Total, Yield	6.48%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	523
Due after One Year through Five Years, Amount	1,610
Due after Five Years though Ten Years, Amount	1,265
Due after Ten Years, Amount	4,497
Debt Securities Carried at Fair Value	7,895
Commercial
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	111
Due in One Year or Less, Yield	7.43%
Due after One Year through Five Years, Amount	593
Due after One Year through Five Years, Yield	2.22%
Due after Five Years though Ten Years, Amount	3,146
Due after Five Years though Ten Years, Yield	2.80%
Due after Ten Years, Amount	3
Due after Ten Years, Yield	2.83%
Total, Amount	3,853
Total, Yield	2.88%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	111
Due after One Year through Five Years, Amount	602
Due after Five Years though Ten Years, Amount	3,273
Due after Ten Years, Amount	3
Debt Securities Carried at Fair Value	3,989
Non-U.S. securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	18,213
Due in One Year or Less, Yield	0.96%
Due after One Year through Five Years, Amount	1,828
Due after One Year through Five Years, Yield	3.28%
Due after Five Years though Ten Years, Amount	6
Due after Five Years though Ten Years, Yield	2.93%
Total, Amount	20,047
Total, Yield	1.37%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	18,199
Due after One Year through Five Years, Amount	1,871
Due after Five Years though Ten Years, Amount	6
Debt Securities Carried at Fair Value	20,076
Corporate/Agency bonds
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	58
Due in One Year or Less, Yield	2.98%
Due after One Year through Five Years, Amount	101
Due after One Year through Five Years, Yield	3.94%
Due after Five Years though Ten Years, Amount	101
Due after Five Years though Ten Years, Yield	3.71%
Due after Ten Years, Amount	96
Due after Ten Years, Yield	1.31%
Total, Amount	356
Total, Yield	3.01%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	58
Due after One Year through Five Years, Amount	107
Due after Five Years though Ten Years, Amount	105
Due after Ten Years, Amount	95
Debt Securities Carried at Fair Value	365
Other taxable securities, substantially all asset-backed securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	2,393
Due in One Year or Less, Yield	1.18%
Due after One Year through Five Years, Amount	5,378
Due after One Year through Five Years, Yield	1.31%
Due after Five Years though Ten Years, Amount	1,330
Due after Five Years though Ten Years, Yield	1.94%
Due after Ten Years, Amount	747
Due after Ten Years, Yield	3.75%
Total, Amount	9,848
Total, Yield	1.98%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	2,396
Due after One Year through Five Years, Amount	5,381
Due after Five Years though Ten Years, Amount	1,350
Due after Ten Years, Amount	748
Debt Securities Carried at Fair Value	9,875
Total taxable securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	22,545
Due in One Year or Less, Yield	1.24%
Due after One Year through Five Years, Amount	120,497
Due after One Year through Five Years, Yield	2.16%
Due after Five Years though Ten Years, Amount	160,158
Due after Five Years though Ten Years, Yield	2.70%
Due after Ten Years, Amount	6,895
Due after Ten Years, Yield	6.14%
Total, Amount	310,095
Total, Yield	2.48%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	22,561
Due after One Year through Five Years, Amount	122,534
Due after Five Years though Ten Years, Amount	162,296
Due after Ten Years, Amount	7,066
Debt Securities Carried at Fair Value	314,457
Tax-exempt securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	1,108
Due in One Year or Less, Yield	0.78%
Due after One Year through Five Years, Amount	3,565
Due after One Year through Five Years, Yield	1.08%
Due after Five Years though Ten Years, Amount	3,638
Due after Five Years though Ten Years, Yield	1.04%
Due after Ten Years, Amount	1,414
Due after Ten Years, Yield	0.94%
Total, Amount	9,725
Total, Yield	1.03%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	1,109
Due after One Year through Five Years, Amount	3,566
Due after Five Years though Ten Years, Amount	3,634
Due after Ten Years, Amount	1,408
Debt Securities Carried at Fair Value	9,717
Debt securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	23,653
Due in One Year or Less, Yield	1.23%
Due after One Year through Five Years, Amount	124,062
Due after One Year through Five Years, Yield	2.13%
Due after Five Years though Ten Years, Amount	163,796
Due after Five Years though Ten Years, Yield	2.66%
Due after Ten Years, Amount	8,309
Due after Ten Years, Yield	5.25%
Total, Amount	319,820
Total, Yield	2.44%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	23,670
Due after One Year through Five Years, Amount	126,100
Due after Five Years though Ten Years, Amount	165,930
Due after Ten Years, Amount	8,474
Debt Securities Carried at Fair Value	$ 324,174