Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Computation of Earnings Per Share

Earnings per share (in millions, except share data):

	Year Ended December 31,
	2019		2018		2017
Basic:
Net income	$	544	$	421	$	17
Weighted-average shares outstanding	53,991,249		53,591,655		53,021,761
Basic earnings per share	$	10.08	$	7.86	$	0.33
Diluted:
Net income	$	544	$	421	$	17
Weighted-average shares outstanding	53,991,249		53,591,655		53,021,761
Dilutive shares	603,168		708,157		667,071
Diluted weighted-average shares outstanding	54,594,417		54,299,812		53,688,832
Diluted earnings per share	$	9.97	$	7.76	$	0.32