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CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Millions
Total
Common Stock
Additional Paid In Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Balance (in shares) at Dec. 31, 2021   544,025,269      
Beginning balance at Dec. 31, 2021 $ 15,612 $ 1,360 $ 7,803 $ 6,572 $ (123)
Increase (Decrease) in Stockholders' Equity          
Net income 708     708  
Other comprehensive income 20       20
Dividends declared on common stock (USD per share)   $ 0.975      
Dividends declared on common stock (531)     (531)  
Issuances of common stock (in shares)   2,782,524      
Issuances of common stock 171 $ 7 164    
Share-based compensation (9)   (7) (2)  
Balance (in shares) at Jun. 30, 2022   546,807,793      
Ending balance at Jun. 30, 2022 15,971 $ 1,367 7,960 6,747 (103)
Balance (in shares) at Mar. 31, 2022   544,530,987      
Beginning balance at Mar. 31, 2022 15,732 $ 1,361 7,801 6,686 (116)
Increase (Decrease) in Stockholders' Equity          
Net income 328     328  
Other comprehensive income 13       13
Dividends declared on common stock (USD per share)   $ 0.4875      
Dividends declared on common stock (266)     (266)  
Issuances of common stock (in shares)   2,276,806      
Issuances of common stock 159 $ 6 153    
Share-based compensation 5   6 (1)  
Balance (in shares) at Jun. 30, 2022   546,807,793      
Ending balance at Jun. 30, 2022 $ 15,971 $ 1,367 7,960 6,747 (103)
Balance (in shares) at Dec. 31, 2022 549,578,018 549,578,018      
Beginning balance at Dec. 31, 2022 $ 16,675 $ 1,374 8,155 7,239 (93)
Increase (Decrease) in Stockholders' Equity          
Net income 706     706  
Other comprehensive income 11       11
Dividends declared on common stock (USD per share)   $ 1.04      
Dividends declared on common stock (572)     (572)  
Issuances of common stock (in shares)   1,797,237      
Issuances of common stock 95 $ 4 91    
Share-based compensation $ (1)   1 (2)  
Balance (in shares) at Jun. 30, 2023 551,375,255 551,375,255      
Ending balance at Jun. 30, 2023 $ 16,914 $ 1,378 8,247 7,371 (82)
Balance (in shares) at Mar. 31, 2023   550,222,192      
Beginning balance at Mar. 31, 2023 16,818 $ 1,376 8,169 7,370 (97)
Increase (Decrease) in Stockholders' Equity          
Net income 288     288  
Other comprehensive income 15       15
Dividends declared on common stock (USD per share)   $ 0.52      
Dividends declared on common stock (286)     (286)  
Issuances of common stock (in shares)   1,153,063      
Issuances of common stock 77 $ 2 75    
Share-based compensation $ 2   3 (1)  
Balance (in shares) at Jun. 30, 2023 551,375,255 551,375,255      
Ending balance at Jun. 30, 2023 $ 16,914 $ 1,378 $ 8,247 $ 7,371 $ (82)