Bank of America Corporation Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Principles - Revenue Recognition (Details)	12 Months Ended
	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue, performance obligation timing	Substantially all card fees are recognized at the transaction date, except for certain time-based fees such as annual fees, which are recognized over 12 months. Other Revenue Measurement and Recognition Policies The Corporation did not disclose the value of any open performance obligations at December 31, 2018, as its contracts with customers generally have a fixed term that is less than one year, an open term with a cancellation period that is less than one year, or provisions that allow the Corporation to recognize revenue at the amount it has the right to invoice.
Minimum
Disaggregation of Revenue [Line Items]
Fee percentage of assets under management	0.50%
Maximum
Disaggregation of Revenue [Line Items]
Fee percentage of assets under management	1.50%