Quarterly report [Sections 13 or 15(d)]

SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, Retained Earnings Accounts and Noncontrolling Interest (Details)

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SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, Retained Earnings Accounts and Noncontrolling Interest (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period     $ 16,255  
Net income $ 604 $ 1,283 1,468 $ 2,470
Balance at end of period $ 15,099   $ 15,099  
Common stock, cash paid for dividends (in dollars per share) $ 1.64   $ 3.28  
Common stock purchases (in shares)   8.6    
Purchases of common stock   $ 1,000 $ 0 1,000
Dividends, common stock $ 40 41 81 85
Common Stock | Class A common stock        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 1 2 1 2
Balance at end of period 1 2 1 2
Common Stock | Class B common stock        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 8 7 8 7
Balance at end of period 8 7 8 7
Additional Paid-In Capital        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 382 0 275 136
Stock award plans 29 (4) 69 35
Common stock purchases 0 0 0 (262)
Common stock issuances 73 87 138 183
Other (2) 1 0 (8)
Balance at end of period 482 84 482 84
Retained Earnings        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 19,622 19,939 20,151 20,882
Net income 604 1,283 1,468 2,470
Dividends (1,396) (1,390) (2,789) (2,782)
Common stock purchases 0 0 0 (738)
Balance at end of period 18,830 19,832 18,830 19,832
Noncontrolling Interests        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 28 24 28 25
Change in non-controlling interest 4 3 4 2
Balance at end of period $ 32 $ 27 $ 32 $ 27