<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA
<TEXT>





                                       Power of Attorney
                                      _________________

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned
does hereby constitute and appoint Ann M. Miller and Adrian L. Bell,
and any one of them, his true and lawful attorney and agent to execute
in his name any and all reports necessary, advisable, or required to be
filed under Section 16(a) of the Securities Exchange Act of 1934 with respect
to equity securities of the Company; and to file the same with the
Securities and Exchange Commission and any applicable stock exchange;
and the undersigned does hereby ratify and confirm all that said attorneys
and agents, or any of them, shall do or cause to be done by virtue hereof.

     This Power of Attorney revokes all prior powers of attorney relating
to reporting under Section 16(a) and shall remain in effect until
revoked by a subsequently filed instrument.


DATED:  03/14/2018


/s/ Elliott J. Hill
____________________
By: Elliott J. Hill
</TEXT>
</DOCUMENT>
