EXHIBIT A

JOINT FILING AGREEMENT

This will confirm the agreement by and among the undersigned that the Schedule 13D filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the shares of common stock, par value $0.00001 per share of WMI Holdings Corp., is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below that is named as a reporting person in such filing in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Dated: January 7, 2015

	KKR FUND HOLDINGS L.P.
By:	KKR Fund Holdings GP Limited, a general partner
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director
By:	KKR Group Holdings L.P.
By:	KKR Group Limited, its general partner
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director
	KKR FUND HOLDINGS GP LIMITED
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director
	KKR GROUP HOLDINGS L.P.
By:	KKR Group Limited, its general partner
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director
	KKR GROUP LIMITED
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Director

	KKR & CO. L.P.
By:	KKR Management LLC, its general partner
By:	/s/ Terence Gallagher
	Name: Terence Gallagher
	Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer
	KKR MANAGEMENT LLC
By:	/s/ Terence Gallagher
	Name: Terence Gallagher Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer
	HENRY R. KRAVIS
By:	/s/ Terence Gallagher
	Name: Terence Gallagher Title: Attorney-in-fact
	GEORGE R. ROBERTS
By:	/s/ Terence Gallagher
	Name: Terence Gallagher Title: Attorney-in-fact