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

Business Segment Information - Results of Business Segments and All Other (Details)

Business Segment Information - Results of Business Segments and All Other (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net interest income	$ 12,528	$ 11,919
Noninterest income	10,629	11,301
Total revenue, net of interest expense	23,157	23,220
Provision for credit losses	1,013	834
Noninterest expense	13,224	13,842
Income before income taxes	8,920	8,544
Income tax expense	1,609	1,626
Net income	7,311	6,918
Year-end total assets	2,377,164	2,328,478	$ 2,354,507
Operating Segments
Segment Reporting Information [Line Items]
Total revenue, net of interest expense	23,788	23,643
Net income	7,359	6,915
Year-end total assets	2,198,484	2,127,522
Operating Segments \| Consumer Banking
Segment Reporting Information [Line Items]
Net interest income	7,106	6,477
Noninterest income	2,526	2,503
Total revenue, net of interest expense	9,632	8,980
Provision for credit losses	974	935
Noninterest expense	4,359	4,548
Income before income taxes	4,299	3,497
Income tax expense	1,053	893
Net income	3,246	2,604
Year-end total assets	794,510	774,257
Operating Segments \| Global Wealth & Investment Management
Segment Reporting Information [Line Items]
Net interest income	1,684	1,584
Noninterest income	3,136	3,272
Total revenue, net of interest expense	4,820	4,856
Provision for credit losses	5	38
Noninterest expense	3,426	3,580
Income before income taxes	1,389	1,238
Income tax expense	340	316
Net income	1,049	922
Year-end total assets	296,785	279,332
Operating Segments \| Global Banking
Segment Reporting Information [Line Items]
Net interest income	2,790	2,679
Noninterest income	2,365	2,316
Total revenue, net of interest expense	5,155	4,995
Provision for credit losses	111	16
Noninterest expense	2,266	2,291
Income before income taxes	2,778	2,688
Income tax expense	750	699
Net income	2,028	1,989
Year-end total assets	436,066	425,328
Operating Segments \| Global Markets
Segment Reporting Information [Line Items]
Net interest income	953	1,020
Noninterest income	3,228	3,792
Total revenue, net of interest expense	4,181	4,812
Provision for credit losses	(23)	(3)
Noninterest expense	2,755	2,923
Income before income taxes	1,449	1,892
Income tax expense	413	492
Net income	1,036	1,400
Year-end total assets	671,123	648,605
All Other
Segment Reporting Information [Line Items]
Net interest income	(5)	159
Noninterest income	(626)	(582)
Total revenue, net of interest expense	(631)	(423)
Provision for credit losses	(54)	(152)
Noninterest expense	418	500
Income before income taxes	(995)	(771)
Income tax expense	(947)	(774)
Net income	(48)	3
Year-end total assets	$ 178,680	$ 200,956