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

Accumulated Other Comprehensive Income (Loss) - Change in Accumulated OCI (Details)

Accumulated Other Comprehensive Income (Loss) - Change in Accumulated OCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019	Jan. 01, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 271,408	$ 264,216	$ 265,325	$ 267,146
Accounting change related to certain tax effects				0
Cumulative effect of new accounting principle					$ 165	$ 25
Net change	1,860	(1,503)	6,594	(6,541)
Ending Balance	268,387	262,158	268,387	262,158
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(7,477)	(13,333)	(12,211)	(7,082)
Accounting change related to certain tax effects				(1,270)
Cumulative effect of new accounting principle						57
Net change			6,594	(6,541)
Ending Balance	(5,617)	(14,836)	(5,617)	(14,836)
Debt Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(5,552)	(1,206)
Accounting change related to certain tax effects				(393)
Cumulative effect of new accounting principle						0
Net change			6,231	(6,166)
Ending Balance	679	(7,765)	679	(7,765)
Debit Valuation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(531)	(1,060)
Accounting change related to certain tax effects				(220)
Cumulative effect of new accounting principle						0
Net change			(272)	183
Ending Balance	(803)	(1,097)	(803)	(1,097)
Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(1,016)	(831)
Accounting change related to certain tax effects				(189)
Cumulative effect of new accounting principle						57
Net change			651	(346)
Ending Balance	(365)	(1,309)	(365)	(1,309)
Employee Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(4,304)	(3,192)
Accounting change related to certain tax effects				(707)
Cumulative effect of new accounting principle						0
Net change			83	91
Ending Balance	(4,221)	(3,808)	(4,221)	(3,808)
Foreign Currency
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(808)	(793)
Accounting change related to certain tax effects				239
Cumulative effect of new accounting principle						$ 0
Net change			(99)	(303)
Ending Balance	$ (907)	$ (857)	$ (907)	$ (857)