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Consolidated Statements of Equity - USD ($) $ in Millions | Total | Series A Preferred Stock | Cumulative Effect, Period of Adoption, Adjustment | Preferred Stock | Preferred Stock Series A Preferred Stock | Common Stock | Common Stock Series A Preferred Stock | Retained Earnings | Retained Earnings Cumulative Effect, Period of Adoption, Adjustment | AOCI | Total Shareholders' Equity | Total Shareholders' Equity Cumulative Effect, Period of Adoption, Adjustment | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2019 | $ 34,033 |  | $ (48) | $ 2,387 |  | $ 23,824 |  | $ 7,576 | $ (48) | $ (1,793) | $ 31,994 | $ (48) | $ 2,039
Beginning balance (in shares) at Dec. 31, 2019 |  |  |  | 2,000,000 |  | 838,000,000 |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201602Member |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) including noncontrolling interests | $ (550) |  |  |  |  |  |  | (401) |  |  | (401) |  | (149)
Issuance of stock | 481 |  |  |  |  | $ 481 |  |  |  |  | 481 |  |
Issuance of stock (in shares) |  |  |  |  |  | 7,000,000 |  |  |  |  |  |  |
Stock repurchases | (3,080) |  |  |  |  | $ (3,080) |  |  |  |  | (3,080) |  |
Stock repurchases (in shares) |  |  |  |  |  | (38,900,000) |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 29 |  |  |  |  | $ 29 |  |  |  |  | 29 |  |
Preferred stock dividends (See Note 19) | (65) |  |  |  |  |  |  | (65) |  |  | (65) |  |
Common dividends and distributions | (3,037) |  |  |  |  |  |  | (2,873) |  |  | (2,873) |  | (164)
Other comprehensive loss, net of tax | 76 |  |  |  |  |  |  |  |  | 76 | 76 |  |
GT&S Transaction closing | (1,367) |  |  |  |  | 17 |  |  |  |  | 17 |  | (1,384)
Other | (11) |  |  |  |  | (13) |  |  |  |  | (13) |  | 2
Ending balance at Dec. 31, 2020 | 26,461 |  |  | $ 2,387 |  | $ 21,258 |  | 4,189 |  | (1,717) | 26,117 |  | 344
Ending Balance (in shares) at Dec. 31, 2020 |  |  |  | 2,000,000 |  | 806,000,000 |  |  |  |  |  |  |
Net income (loss) including noncontrolling interests | 3,314 |  |  |  |  |  |  | 3,288 |  |  | 3,288 |  | 26
Issuance of stock | 1,332 |  |  | $ 992 |  | $ 340 |  |  |  |  | 1,332 |  |
Issuance of stock (in shares) |  |  |  | 1,000,000 |  | 4,000,000 |  |  |  |  |  |  |
Stock repurchases (in shares) |  |  |  |  |  | 0 |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 28 |  |  |  |  | $ 28 |  |  |  |  | 28 |  |
Preferred stock dividends (See Note 19) | (68) |  |  |  |  |  |  | (68) |  |  | (68) |  |
Common dividends and distributions | (2,083) |  |  |  |  |  |  | (2,036) |  |  | (2,036) |  | (47)
Other comprehensive loss, net of tax | 259 |  |  |  |  |  |  |  |  | 259 | 259 |  |
Reclassification of Series A Preferred Stock to Mezzanine Equity |  | $ (1,610) |  |  | $ (1,596) |  | $ (14) |  |  |  | (1,610) |  |
Reclassification of Series A Preferred Stock to Mezzanine Equity (in shares) |  |  |  |  | (1,000,000) |  |  |  |  |  |  |  |
Sale of non-wholly-owned nonregulated solar facilities | (323) |  |  |  |  |  |  |  |  |  |  |  | $ (323)
Other | (2) |  |  |  |  | (2) |  |  |  |  | (2) |  |
Ending balance at Dec. 31, 2021 | 27,308 |  |  | $ 1,783 |  | $ 21,610 |  | 5,373 |  | (1,458) | 27,308 |  |
Ending Balance (in shares) at Dec. 31, 2021 |  |  |  | 2,000,000 |  | 810,000,000 |  |  |  |  |  |  |
Net income (loss) including noncontrolling interests | 994 |  |  |  |  |  |  | 994 |  |  | 994 |  |
Issuance of stock | 1,969 |  |  |  |  | $ 1,969 |  |  |  |  | 1,969 |  |
Issuance of stock (in shares) |  |  |  |  |  | 25,000,000 |  |  |  |  |  |  |
Stock repurchases (in shares) |  |  |  |  |  | 0 |  |  |  |  |  |  |
Stock awards (net of change in unearned compensation) | 26 |  |  |  |  | $ 26 |  |  |  |  | 26 |  |
Preferred stock dividends (See Note 19) | (93) |  |  |  |  |  |  | (93) |  |  | (93) |  |
Common dividends and distributions | (2,209) |  |  |  |  |  |  | (2,209) |  |  | (2,209) |  |
Other comprehensive loss, net of tax | (114) |  |  |  |  |  |  |  |  | (114) | (114) |  |
Ending balance at Dec. 31, 2022 | $ 27,881 |  |  | $ 1,783 |  | $ 23,605 |  | $ 4,065 |  | $ (1,572) | $ 27,881 |  |
Ending Balance (in shares) at Dec. 31, 2022 |  |  |  | 2,000,000 |  | 835,000,000 |  |  |  |  |  |  |

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