Share-Based Compensation (Tables)

The following table provides total share-based compensation expense by type of award:


	Three Months Ended December 31,
(in millions)	2021		2020
Restricted share unit expense	$	17	$	17

Performance share unit expense	1		6
Total share-based compensation	$	18	$	23


	Six Months Ended December 31,
(in millions)	2021		2020
Restricted share unit expense	$	35	$	36

Performance share unit expense	7		15
Total share-based compensation	$	42	$	51

The following table summarizes all stock option transactions under the Plans:


(in millions, except per share amounts)	Stock Options	Weighted-Average Exercise Price per Common Share
Outstanding at June 30, 2021	4	$	68.46
Granted	—	—
Exercised	—	—
Canceled and forfeited	—	—
Outstanding at December 31, 2021	4	$	69.24
Exercisable at December 31, 2021	4	$	69.41

The following tables provide additional detail related to stock options:


(in millions)	December 31, 2021		June 30, 2021
Aggregate intrinsic value of outstanding options at period end	$	3	$	11
Aggregate intrinsic value of exercisable options at period end	3		11


(in years)	December 31, 2021	June 30, 2021
Weighted-average remaining contractual life of outstanding options	4	4
Weighted-average remaining contractual life of exercisable options	4	4

The following table summarizes all transactions related to restricted share units under the Plans:


(in millions, except per share amounts)	Restricted Share Units	Weighted-Average Grant Date Fair Value per Share
Nonvested at June 30, 2021	3	$	49.05
Granted	2	51.62
Vested	(2)	49.47
Canceled and forfeited	—	—
Nonvested at December 31, 2021	3	$	45.66

The following table summarizes all transactions related to performance share units under the Plans (based on target award amounts):


(in millions, except per share amounts)	Performance Share Units	Weighted-Average Grant Date Fair Value per Share
Nonvested at June 30, 2021	1.2	$	54.89
Granted	0.4	51.91
Vested	(0.3)	52.36
Canceled and forfeited	(0.1)	52.84
Nonvested at December 31, 2021	1.2	$	52.99