Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted earnings per share on net income (in millions, except per share information):

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Earnings:
Net income	$	344	$	158	$	483	$	70
Shares:
Weighted average outstanding shares	68		63		68		63
Equivalent shares from outstanding stock options	1		1		1		1
Denominator for diluted calculation	69		64		69		64
Earnings per share:
Basic	$	5.06	$	2.49	$	7.11	$	1.12
Diluted	$	5.02	$	2.48	$	7.06	$	1.11