Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Computation of Earnings Per Share

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

	Year Ended December 31,
	2021		2020		2019
Basic:
Net income	$	837	$	504	$	544
Weighted-average shares outstanding	53,446,399		53,441,375		53,991,249
Basic earnings per share	$	15.66	$	9.43	$	10.08
Diluted:
Net income	$	837	$	504	$	544
Weighted-average shares outstanding	53,446,399		53,441,375		53,991,249
Dilutive shares	456,031		471,870		603,168
Diluted weighted-average shares outstanding	53,902,430		53,913,245		54,594,417
Diluted earnings per share	$	15.52	$	9.35	$	9.97