Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Award Activity [Table Text Block]

Award activity — (shares in millions)

	Options				SARs			RSUs				PSUs
	Shares		Exercise Price*		Shares	Exercise Price*		Shares		Grant-Date Fair Value*		Shares		Grant-Date Fair Value*
December 31, 2018	0.7		$	15.33	0.1			1.8		$	20.06	0.5		$	22.45
Granted								1.0		17.08		0.4		16.17
Exercised or vested	(0.1	)	4.80					(0.7	)	14.66		(0.2	)	18.63
Forfeited or expired								(0.1	)	20.49
December 31, 2019	0.6		16.13		0.1	$	16.27	2.0		20.56		0.7		19.99

* Weighted-average

Total Stock Compensation Expense and Other Annual Disclosures [Table Text Block]

	2019		2018		2017
Total stock compensation expense	$	19	$	16	$	23
Total grant-date fair value of awards vested	16		16		17
Cash received from exercise of stock options			2		10
Cash paid to settle SARs and RSUs	2		2		4
Intrinsic value of stock options and SARs exercised	1		3		8
Intrinsic value of RSUs and PSUs vested	17		18		20