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Earnings Per Common Share
3 Months Ended
Mar. 31, 2020
Earnings Per Share [Abstract]  
Earnings Per Common Share
3. EARNINGS PER COMMON SHARE
Computation of Basic and Diluted Earnings per Common Share
 
Three Months Ended March 31,
(In millions, except for per share data)
2020
2019
Earnings
 
 
Net income
$
273

$
630

Less: Preferred stock dividends
5

5

Net income available to common stockholders
$
268

$
625

Shares
 
 
Weighted average common shares outstanding, basic
358.5

360.0

Dilutive effect of warrants [1]

1.4

Dilutive effect of stock-based awards under compensation plans
2.6

3.3

Weighted average common shares outstanding and dilutive potential common shares
361.1

364.7

Net income available to common stockholders per common share
 
 
Basic
$
0.75

$
1.74

Diluted
$
0.74

$
1.71