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Earnings per Share (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
Earnings Per Share [Abstract] |  |  |  |
Net income (loss) from continuing operations | $ (744) | $ 1,185 | $ 15 | $ 2,267
Net income attributable to noncontrolling interests | 7 | 12 | 14 | 22
Preferred stock dividends | 55 | 55 | 118 | 118
Preferred stock discount accretion and redemptions | 1 | 1 | 2 | 2
Net income (loss) from continuing operations attributable to common shareholders | (807) | 1,117 | (119) | 2,125
Less: Dividends and undistributed earnings allocated to nonvested restricted shares | 1 | 4 | 4 | 8
Net income (loss) from continuing operations attributable to basic common shareholders | (808) | 1,113 | (123) | 2,117
Net income from discontinued operations attributable to common shareholders | 4,399 | 189 | 4,555 | 378
Less: Undistributed earnings allocated to nonvested restricted shares | 21 | 0 | 22 | 1
Net income from discontinued operations attributable to basic common shareholders | $ 4,378 | $ 189 | $ 4,533 | $ 377
Basic weighted-average common shares outstanding (in shares) | 426 | 451 | 428 | 453
Basic earnings (loss) per common share from continuing operations (in dollars per share) | $ (1.90) | $ 2.47 | $ (0.29) | $ 4.68
Basic earnings per common share from discontinued operations (in dollars per share) | 10.28 | 0.42 | 10.60 | 0.83
Basic earnings per common share (in dollars per share) | $ 8.40 | $ 2.89 | $ 10.33 | $ 5.51
Less: Impact of earnings per share dilution from discontinued operations | $ 1 | $ 2 | $ 2 | $ 5
Net income from discontinued operations attributable to diluted common shareholders | $ 4,377 | $ 187 | $ 4,531 | $ 372
Dilutive potential common shares (in shares) | 0 | 1 | 0 | 1
Diluted weighted-average common shares outstanding (in shares) | 426 | 452 | 428 | 454
Diluted earnings (loss) per common share from continuing operations (in dollars per share) | $ (1.90) | $ 2.47 | $ (0.29) | $ 4.67
Diluted earnings per common share from discontinued operations (in dollars per share) | 10.28 | 0.41 | 10.59 | 0.82
Diluted earnings per common share (in dollars per share) | $ 8.40 | $ 2.88 | $ 10.32 | $ 5.49

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- Definition Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256 + Details
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- Definition Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the diluted earnings (loss) per share or per unit calculation under the two-class method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256 + Details
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- Definition The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=117326831&loc=d3e1377-109256 + Details
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