v3.26.1
PREFERRED STOCK - Schedule of Preferred Stock Outstanding (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Class of Stock [Line Items]    
Carrying value $ 19,550 $ 20,050
Series T    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,500,000  
Carrying value $ 1,500 1,500
Percentage of interest in corresponding series of preferred stock 4.00%  
Series T | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.25%  
Series X    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 2,300,000  
Carrying value $ 0 2,300
Percentage of interest in corresponding series of preferred stock 4.00%  
Series Y    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,000,000  
Carrying value $ 1,000 1,000
Percentage of interest in corresponding series of preferred stock 4.00%  
Series Y | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 4.15%  
Series Y | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 3.00%  
Series Z    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,250,000  
Carrying value $ 1,250 1,250
Percentage of interest in corresponding series of preferred stock 4.00%  
Series Z | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 7.375%  
Series Z | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 3.209%  
Series AA    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,500,000  
Carrying value $ 1,500 1,500
Percentage of interest in corresponding series of preferred stock 4.00%  
Series AA | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 7.625%  
Series AA | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 3.211%  
Series BB    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 550,000  
Carrying value $ 550 550
Percentage of interest in corresponding series of preferred stock 4.00%  
Series BB | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 7.20%  
Series BB | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.905%  
Series CC    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,750,000  
Carrying value $ 1,750 1,750
Percentage of interest in corresponding series of preferred stock 4.00%  
Series CC | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 7.125%  
Series CC | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.693%  
Series DD    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,500,000  
Carrying value $ 1,500 1,500
Percentage of interest in corresponding series of preferred stock 4.00%  
Series DD | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 7.00%  
Series DD | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.757%  
Series EE    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,500,000  
Carrying value $ 1,500 1,500
Percentage of interest in corresponding series of preferred stock 4.00%  
Series EE | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.75%  
Series EE | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.572%  
Series FF    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 2,000,000  
Carrying value $ 2,000 2,000
Percentage of interest in corresponding series of preferred stock 4.00%  
Series FF | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.95%  
Series FF | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.726%  
Series GG    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 2,700,000  
Carrying value $ 2,700 2,700
Percentage of interest in corresponding series of preferred stock 4.00%  
Series GG | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.875%  
Series GG | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.89%  
Series HH    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 2,500,000  
Carrying value $ 2,500 2,500
Percentage of interest in corresponding series of preferred stock 4.00%  
Series HH | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.625%  
Series HH | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 3.001%  
Series II    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 25  
Number of depositary shares (in shares) 32,000,000  
Carrying value $ 800 0
Percentage of interest in corresponding series of preferred stock 4.00%  
Series II | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.25%  
Series JJ    
Class of Stock [Line Items]    
Redemption price per depositary share/ preference share (in dollars per share) $ 1,000  
Number of depositary shares (in shares) 1,000,000  
Carrying value $ 1,000 $ 0
Percentage of interest in corresponding series of preferred stock 4.00%  
Series JJ | Base Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 6.50%  
Series JJ | US Treasury (UST) Interest Rate    
Class of Stock [Line Items]    
Dividend rate (as a percent) 2.745%