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Earnings Per Share Of Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
EPS of Common Stock |  |  |  |  |  |
Income from continuing operations | $ 307 |  | $ 341 |  | $ 331 | $ 696
Less: Preferred dividends | 0 |  | 0 |  | 0 | (3)
Less: Undistributed earnings allocated to preferred stockholders | 0 |  | (5) |  | 0 | (7)
Income from continuing operations available to common stockholders | 307 |  | 336 |  | 331 | 686
Discontinued operations, net of tax | 2 | [1] | (29) | [1] | 52 | (64)
Less: Undistributed earnings allocated to preferred stockholders | 0 |  | 1 |  | 0 | 1
Income (loss) from discontinued operations available to common stockholders | 2 |  | (28) |  | 52 | (63)
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS | $ 309 |  | $ 308 |  | $ 383 | $ 623
Share Count information: |  |  |  |  |  |
Weighted average number of basic shares outstanding (in shares) | 542 |  | 532 |  | 541 | 531
Assumed exercise of dilutive stock options and awards (in shares) | 1 |  | 1 |  | 2 | 2
Weighted average number of diluted shares outstanding | 543 |  | 533 |  | 543 | 533
Income available to common stockholders, per common share: |  |  |  |  |  |
Income from continuing operations, basic (in dollars per share) | $ 0.57 |  | $ 0.63 |  | $ 0.61 | $ 1.29
Discontinued operations, basic (in dollars per share) | 0 |  | (0.05) |  | 0.10 | (0.12)
Basic - Net Income Attributable to Common Stockholders (in dollars per share) | 0.57 |  | 0.58 |  | 0.71 | 1.17
Income from continuing operations, diluted (in dollars per share) | 0.57 |  | 0.63 |  | 0.61 | 1.29
Discontinued operations, diluted (in dollars per share) | 0 |  | (0.05) |  | 0.10 | (0.12)
Diluted - Net Income Attributable to Common Stockholders (in dollars per share) | $ 0.57 |  | $ 0.58 |  | $ 0.71 | $ 1.17
Stock Options |  |  |  |  |  |
Income available to common stockholders, per common share: |  |  |  |  |  |
Shares excluded from the calculation of diluted shares outstanding, in shares | 0 |  | 0 |  |  |
Preferred Stock |  |  |  |  |  |
Income available to common stockholders, per common share: |  |  |  |  |  |
Shares excluded from the calculation of diluted shares outstanding, in shares |  |  |  |  | 8 | 8
[1] | Net of income tax expense of $1 million and $39 million for the three months ended June 30, 2020 and 2019, respectively, and $(35) million and $44 million for the six months ended June 30, 2020 and 2019, respectively.

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