Common and Preferred Shares and Warrants (Tables)

12 Months Ended

Dec. 31, 2017

Table Text Block [Abstract]

Authorized shares and a reconciliation of common shares issued and outstanding

The following table shows authorized shares and provides a reconciliation of common shares issued and outstanding for the years ended December 31:

(Millions, except where indicated)	2017	2016	2015
Common shares authorized (billions)(a)	3.6	3.6	3.6
Shares issued and outstanding at beginning of year	904	969	1,023
Repurchases of common shares	(50)	(70)	(59)
Other, primarily stock option exercises and restricted stock awards granted	5	5	5
Shares issued and outstanding as of December 31	859	904	969

Of the common shares authorized but unissued as of December 31, 2017, approximately 29 million shares are reserved for issuance under employee stock and employee benefit plans.

Perpetual Fixed Rate Noncumulative Preferred Shares issued and outstanding

The Company has the following perpetual Fixed Rate/Floating Rate Noncumulative Preferred Share series issued and outstanding as of December 31, 2017:

	Series B	Series C
Issuance date	November 10, 2014	March 2, 2015
Securities issued	750 Preferred Shares; represented by 750,000 depositary shares	850 Preferred Shares; represented by 850,000 depositary shares
Aggregate liquidation preference	$750 million	$850 million
Fixed dividend rate per annum	5.20%	4.90%
Semi-annual fixed dividend payment dates	Beginning May 15, 2015	Beginning September 15, 2015
Floating dividend rate per annum	3 month LIBOR+ 3.428%	3 month LIBOR+ 3.285%
Quarterly floating dividend payment dates	Beginning February 15, 2020	Beginning June 15, 2020
Fixed to floating rate conversion date(a)	November 15, 2019	March 15, 2020

The date on which dividends convert from a fixed-rate calculation to a floating rate calculation.