Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 6,290	$ 5,980	$ 12,204	$ 11,249
Other comprehensive income/(loss), after–tax
Unrealized gains/(losses) on investment securities	(1,419)	1,075	(1,330)	2,069
Translation adjustments, net of hedges	3	12	(7)	10
Cash flow hedges	80	68	157	127
Defined benefit pension and OPEB plans	8	7	93	33
Total other comprehensive income, after–tax	(1,328)	1,162	(1,087)	2,239
Comprehensive income	$ 4,962	$ 7,142	$ 11,117	$ 13,488