POWER OF ATTORNEY

	Know all by these presents that the undersigned hereby constitutes and appoints
each of Kathryn McNamara Corley and Jennifer Schott, signing singly, the
undersigned's true and lawful attorney-in-fact to:

 	execute for and on behalf of the undersigned, all reports to be filed by the
undersigned pursuant to Section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act") and the rules promulgated thereunder (including
Forms 3, 4, and 5 and any successor forms) (the "Section 16 Reports") with
respect to the equity securities of Discover Financial Services (the "Company");
and

	do and perform any and all acts for and on behalf of the undersigned that may
be necessary or desirable to complete and execute any such Section 16 Report,
complete and execute any amendment or amendments thereto, and file such report
with the United States Securities and Exchange Commission and any stock exchange
or similar authority; and

 	take any other action of any type whatsoever in connection with the foregoing
that, in the opinion of such attorney-in-fact, may be of benefit to, in the best
interest of, or legally required by, the undersigned, it being understood that
the documents executed by such attorney-in-fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

The powers granted above may be exercised by each such attorney-in-fact on
behalf of the undersigned, individually, and on behalf of the undersigned in any
fiduciary or representative capacity in which the undersigned may be acting.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this Power of Attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Exchange Act.

	This Power of Attorney shall be effective as of the date set forth below and
shall continue in full force and effect until the undersigned is no longer
required to file Section 16 Reports with respect to the equity securities of the
Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 13th day of January, 2016.


Signature:  /s/Joseph F. Eazor          Print Name:  	Joseph F. Eazor