Selected Quarterly Financial Data (Unaudited) (table)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Data (Unaudited) disclosure

Selected Quarterly Financial Data (Unaudited) disclosure [Table Text Block]

2016 (in millions, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
Total revenues	$	6,686	$	6,785	$	6,961	$	7,193	$	27,625
Total expenses	5,769		5,898		6,014		5,891		23,572
Income before income taxes	917		887		947		1,302		4,053
Income tax expense	226		223		231		359		1,039
Net income	$	691	$	664	$	716	$	943	$	3,014
Net income per share(1):
Basic	$	2.33	$	2.27	$	2.48	$	3.32	$	10.39
Diluted	2.30		2.24		2.45		3.28		10.28
2015 (in millions, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
Total revenues	$	6,629	$	6,710	$	6,798	$	6,678	$	26,815
Total expenses	5,481		5,634		5,491		5,469		22,075
Income before income taxes	1,148		1,076		1,307		1,209		4,740
Income tax expense	315		264		379		343		1,301
Net income	$	833	$	812	$	928	$	866	$	3,439
Net income per share(1):
Basic	$	2.58	$	2.56	$	3.00	$	2.87	$	10.99
Diluted	2.55		2.53		2.97		2.83		10.88

(1) Due to the averaging of shares, quarterly earnings per share may not add to the total for the full year.