	Three months				Six months
Periods ended June 30 (millions)	2018		2017		2018		2017
Short-term benefits	$	3	$	3	$	6	$	6
Post-employment pension 1 and other benefits	3		—		4		1
Share-based compensation 2	21		8		24		12

	$	27	$	11	$	34	$	19

(1)Our Executive Leadership Team members are members of our Pension Plan for Management and Professional Employees of TELUS Corporation and non-registered, non-contributory supplementary defined benefit pension plans.

(2)For the three-month and six-month periods ended June 30, 2018, share-based compensation expense is net of $1 (2017 – $1) and $NIL (2017 – $1), respectively, of the effects of derivatives used to manage share-based compensation costs (Note 14(b)).

Six-month periods ended June 30	2018					2017
($ in millions)	Number of restricted stock units	Notional value 1		Grant-date fair value 1		Number of restricted stock units	Notional value 1		Grant-date fair value 1
Awarded in period	608,849	$	28	$	36	686,595	$	30	$	30

(1)

Notional value is determined by multiplying the Common Share price at the time of award by the number of units awarded. The grant-date fair value differs from the notional value because the fair values of some awards have been determined using a Monte Carlo simulation (see Note 14(b)).

As at (millions)	June 30, 2018		December 31, 2017
Restricted stock units	$	59	$	40
Deferred share units 1	20		24

	$	79	$	64

(1)

Our Directors’ Deferred Share Unit Plan provides that, in addition to his or her annual equity grant of deferred share units, a director may elect to receive his or her annual retainer and meeting fees in deferred share units, Common Shares or cash. Deferred share units entitle directors to a specified number of, or a cash payment based on the value of, our Common Shares. Deferred share units are paid out when a director ceases to be a director, for any reason, at a time elected by the director in accordance with the Directors’ Deferred Share Unit Plan; during the three-month and six-month periods ended June 30, 2018, $6 (2017 – $9) and $6 (2017 – $11), respectively, was paid out.