Earnings Per Common Share ("EPS") Earnings Per Common Share ("EPS") (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

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

	Quarter ended
	2021		2020
Net Income	$	326	$	83
Weighted-average common shares outstanding (for basic calculation)	301		302
Effect of dilutive share-based employee compensation	4		5
Weighted-average common and dilutive potential common shares outstanding (for diluted calculation)	305		307
Basic EPS	$	1.09	$	0.28
Diluted EPS	$	1.07	$	0.27
Unexercised employee stock options and stock appreciation rights (in millions) excluded from the diluted EPS computation(a)	2.3		4.2

(a)These unexercised employee stock options and stock appreciation rights were not included in the computation of diluted EPS because to do so would have been antidilutive for the periods presented.