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

Goodwill and Intangible Assets - Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 207	$ 234	$ 632	$ 708
Purchased credit card and affinity relationships
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	89	105	267	312
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	31	36	94	108
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	83	87	257	268
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 4	$ 6	$ 14	$ 20