Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2020

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,
	2020		2019		2020		2019
Earnings:
Net income	$	158	$	202	$	70	$	372
Shares:
Weighted average outstanding shares	63		63		63		63
Equivalent shares from outstanding stock options	1		1		1		1
Denominator for diluted calculation	64		64		64		64
Earnings per share:
Basic	$	2.49	$	3.23	$	1.12	$	5.93
Diluted	$	2.48	$	3.18	$	1.11	$	5.83

Schedule Of Earnings Per Share Basic And Diluted By Common Class [Text Block]

The following table presents approximate amounts of stock options and performance contingent shares excluded from the calculation of common equivalent shares (in thousands):



	Three months ended June 30,		Six months ended June 30,
	2020	2019	2020	2019
Excluded from common equivalent shares:
Stock options	1,638	250	1,200	420
Performance contingent shares	96	242	130	171