EARNINGS PER SHARE

Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period. Net income available to common stockholders represents net income after preferred stock dividends, accretion of the discount on preferred stock issuances, and gains or losses from any repurchases of preferred stock. Diluted EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during each period, plus potential dilutive shares such as share-based payment awards and warrants using the treasury stock method.



	Year Ended December 31,
(in millions, except share and per-share data)	2018		2017		2016
Numerator (basic and diluted):
Net income		$1,721		$1,652		$1,045
Less: Preferred stock dividends	29		14		14
Net income available to common stockholders		$1,692		$1,638		$1,031
Denominator:
Weighted-average common shares outstanding - basic	478,822,072		502,157,440		522,093,545
Dilutive common shares: share-based awards	1,608,669		1,527,651		1,837,173
Weighted-average common shares outstanding - diluted	480,430,741		503,685,091		523,930,718
Earnings per common share:
Basic		$3.54		$3.26		$1.97
Diluted	3.52		3.25		1.97

Potential dilutive common shares are excluded from the computation of diluted EPS in the periods where the effect would be antidilutive. The diluted EPS computation for the year ended December 31, 2018 and 2016 did not have any antidilutive shares. The diluted EPS computation for the year ended December 31, 2017 excluded 533 average share-based awards because their inclusion would have been antidilutive.