Quarterly report [Sections 13 or 15(d)]

SHAREHOLDERS' EQUITY (Details)

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SHAREHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Class of Stock [Line Items]      
Shares outstanding (in shares) 877,500 877,500  
Carrying Amount $ 1,989 $ 1,989  
Investment, Variable Interest Rate, Type [Extensible Enumeration] Secured Overnight Financing Rate (SOFR) [Member]    
Amount $ 27   $ 36
Retained Earnings      
Class of Stock [Line Items]      
Amount $ 27   $ 36
Series B      
Class of Stock [Line Items]      
Shares outstanding (in shares) 35,500    
Carrying Amount $ 23 23  
Preferred stock, basis spread adjustment on variable rate 0.26%    
Preferred stock, variable rate basis spread 2.70%    
Cash dividend declared per share (in usd per share) $ 18.16   $ 20.69
Series B | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 1   $ 1
Series F      
Class of Stock [Line Items]      
Shares outstanding (in shares) 5,000    
Dividend Rate 5.625%    
Carrying Amount $ 494 494  
Cash dividend declared per share (in usd per share) $ 1,406.25   $ 1,406.25
Series F | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 6   $ 7
Series G      
Class of Stock [Line Items]      
Shares outstanding (in shares) 5,000    
Dividend Rate 4.45%    
Carrying Amount $ 494 494  
Cash dividend declared per share (in usd per share) $ 1,112.5   $ 1,112.5
Series G | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 6   $ 6
Series H      
Class of Stock [Line Items]      
Shares outstanding (in shares) 500,000    
Dividend Rate 4.50%    
Carrying Amount $ 486 486  
Cash dividend declared per share (in usd per share) $ 11.25   $ 11.25
Series H | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 6   $ 6
Series I      
Class of Stock [Line Items]      
Shares outstanding (in shares) 7,000    
Dividend Rate 5.70%    
Carrying Amount $ 175 175  
Redemption price (per share) $ 25,000    
Cash dividend declared per share (in usd per share) $ 356.25   $ 356.25
Series I | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 2   $ 2
Series J      
Class of Stock [Line Items]      
Shares outstanding (in shares) 325,000    
Dividend Rate 6.875%    
Carrying Amount $ 317 $ 317  
Cash dividend declared per share (in usd per share) $ 17.19   $ 17.19
Series J | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 6   $ 6
Series B, H and J Preferred Stock      
Class of Stock [Line Items]      
Redemption price (per share) $ 1,000    
Series F and G Preferred Stock      
Class of Stock [Line Items]      
Redemption price (per share) $ 100,000    
Series E (1)      
Class of Stock [Line Items]      
Preferred stock, basis spread adjustment on variable rate 0.26%    
Preferred stock, variable rate basis spread 2.88%    
Cash dividend declared per share (in usd per share) $ 0   $ 2,113.9
Stock redeemed (in shares)   405,000,000  
Preferred stock par value (in USD per share)   $ 0.01  
Series E (1) | Retained Earnings      
Class of Stock [Line Items]      
Amount $ 0   $ 8