Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Basic And Diluted Net Income Per Common Share

Basic and diluted net income per common share are presented in the following table.

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions, except per share data)	2018		2017		2018		2017
Basic and diluted
Net income	$	318	$	226	$	925	$	631
Less:
Income allocated to participating securities	2		2		6		5
Net income attributable to common shares	$	316	$	224	$	919	$	626
Basic average common shares	167		174		170		175
Basic net income per common share	$	1.89	$	1.29	$	5.41	$	3.58
Basic average common shares	167		174		170		175
Dilutive common stock equivalents:
Net effect of the assumed exercise of stock options	2		2		2		3
Net effect of the assumed exercise of warrants	1		1		1		1
Diluted average common shares	170		177		173		179
Diluted net income per common share	$	1.86	$	1.26	$	5.32	$	3.50