Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Loans held for sale	[1]	$ 1,764	$ 2,504
Loans	[1]	221,109	210,833
Other assets	[1]	28,454	27,506
Other borrowed funds	[2]	$ 4,958	$ 4,176
Common stock, par value (in dollars per share)		$ 5	$ 5
Common stock, authorized (shares)		800,000,000	800,000,000
Common stock, issued (shares)		542,000,000	542,000,000
Common stock held in treasury at cost (shares)		66,000,000	57,000,000
Preferred stock	[3]
Portion at Fair Value, Fair Value Disclosure
Loans held for sale, fair value	[1]	1,600	2,400
Loans, fair value	[1]	800	900
Other assets, fair value	[1]	300	500
Other borrowed funds, fair value	[2]	$ 100	$ 100

[1] Our consolidated assets included the following for which we have elected the fair value option: Loans held for sale of $1.6 billion, Loans of $.8 billion and Other assets of $.3 billion at September 30, 2017 and Loans held for sale of $2.4 billion, Loans of $.9 billion and Other assets of $.5 billion at December 31, 2016.

[2] Our consolidated liabilities at both September 30, 2017 and December 31, 2016 included Other borrowed funds of $.1 billion for which we have elected the fair value option.

[3] Par value less than $.5 million at each date.