v3.25.4
Equity - Schedule of Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Jun. 04, 2008
May 22, 2008
May 19, 2008
Dec. 14, 2007
Nov. 21, 2007
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   555,374,922 555,374,922          
Preferred stock   $ 19,130 $ 19,130          
Preferred stock, shares outstanding (in shares)   555,374,922 555,374,922          
Series D                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   3,000,000 3,000,000          
Preferred stock   $ 150 $ 150          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.25%            
Series E                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   3,000,000 3,000,000          
Preferred stock   $ 150 $ 150          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.10%            
Series F                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   14,000,000 14,000,000          
Preferred stock   $ 690 $ 690          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   4.482%            
Preferred stock, redemption terms   two            
Series G                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   6,000,000 6,000,000          
Preferred stock   $ 288 $ 288          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   3.368%            
Preferred stock, redemption terms two two            
Series H                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   8,000,000 8,000,000          
Preferred stock   $ 400 $ 400          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.81%            
Series I                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   6,000,000 6,000,000          
Preferred stock   $ 300 $ 300          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.375%            
Series L                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   7,000,000 7,000,000          
Preferred stock   $ 345 $ 345          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.125%            
Series M                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   9,000,000 9,000,000          
Preferred stock   $ 460 $ 460          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   4.75%            
Series N                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   5,000,000 5,000,000          
Preferred stock   $ 225 $ 225          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   5.50%            
Series O                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   50,000,000 50,000,000          
Preferred stock   $ 2,500 $ 2,500          
Preferred stock, stated value per share (in dollars per share)   $ 50            
Preferred stock, annual dividend rate   7.00%            
Convertible Series 2004-1                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   24,922 24,922          
Preferred stock   $ 2,492 $ 2,492          
Preferred stock, stated value per share (in dollars per share)   $ 100,000            
Preferred stock, annual dividend rate   5.375%            
Preferred stock, shares outstanding (in shares)   24,922 24,922          
Series P                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   40,000,000 40,000,000          
Preferred stock   $ 1,000 $ 1,000          
Preferred stock, stated value per share (in dollars per share)   $ 25            
Preferred stock, annual dividend rate   4.684%            
Preferred stock dividend rate, basis spread on variable rate   0.75%            
Series Q                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   15,000,000 15,000,000          
Preferred stock   $ 375 $ 375          
Preferred stock, stated value per share (in dollars per share)   $ 25            
Preferred stock, annual dividend rate   6.75%            
Series R                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   21,000,000 21,000,000       1,200,000 20,000,000
Preferred stock   $ 530 $ 530       $ 30 $ 500
Preferred stock, stated value per share (in dollars per share)   $ 25            
Preferred stock, annual dividend rate   7.625%            
Series S                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   280,000,000 280,000,000          
Preferred stock   $ 7,000 $ 7,000          
Preferred stock, stated value per share (in dollars per share)   $ 25            
Preferred stock, annual dividend rate   8.164%            
Preferred stock dividend rate, basis spread on variable rate   4.23%            
Preferred stock, redemption terms   five years            
Series T                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   89,000,000 89,000,000 1,000,000 8,000,000 80,000,000    
Preferred stock   $ 2,225 $ 2,225   $ 200 $ 2,000    
Preferred stock, stated value per share (in dollars per share)   $ 25            
Preferred stock, annual dividend rate   8.25%            
Liquidation preference       $ 25        
Maximum | Series F                
Class of Stock [Line Items]                
Preferred stock, annual dividend rate   11.00%            
Maximum | Series G                
Class of Stock [Line Items]                
Preferred stock, annual dividend rate   11.00%            
Minimum | Series O                
Class of Stock [Line Items]                
Preferred stock, annual dividend rate   7.00%            
Minimum | Series P                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   4.50%            
Minimum | Series S                
Class of Stock [Line Items]                
Preferred stock, annual dividend rate   7.75%            
Two-year Constant Maturity U.S. Treasury Rate | Series F                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   0.16%            
Two-year Constant Maturity U.S. Treasury Rate | Series G                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   0.18%            
Ten-year Constant Maturity U.S. Treasury Rate | Series O                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   2.375%            
Secured Overnight Financing Rate (SOFR) | Series P                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   0.26161%            
Secured Overnight Financing Rate (SOFR) | Series S                
Class of Stock [Line Items]                
Preferred stock dividend rate, basis spread on variable rate   0.26161%            
Preferred Stock                
Class of Stock [Line Items]                
Preferred stock, shares issued (in shares)   556,000,000 556,000,000          
Preferred stock   $ 19,130 $ 19,130