Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Antidilutive Securities Excluded From Earnings per Share

Anti-dilutive shares, which could potentially dilute earnings per share in the future, are set forth below (in millions):

	Three months ended September 30,		Nine months ended September 30,
	2018	2017	2018	2017
Share options and appreciation rights	1.5	1.7	1.5	1.7
P-Units and RSUs	4.0	4.0	4.2	3.9
Total potentially dilutive shares	5.5	5.7	5.7	5.6