Quarterly report pursuant to Section 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, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period     $ 17,314  
Common stock purchases (in shares) 0 (4,300,000) 0 (8,400,000)
Common stock purchases   $ (750)   $ (1,500)
Net income attributable to common shareowners $ 1,409 $ 2,081 $ 2,522 $ 3,976
Balance at end of period $ 17,053   $ 17,053  
Common stock, cash paid for dividends (in dollars per share) $ 1.63 $ 1.62 $ 3.26 $ 3.24
Dividends, common stock $ 45 $ 48 $ 111 $ 153
Class A common stock (in shares)        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period (in shares)     127,000,000  
Balance at end of period (in shares) 125,000,000   125,000,000  
Class B common stock (in shares)        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period (in shares)     726,000,000  
Balance at end of period (in shares) 732,000,000   732,000,000  
Common Stock | Class A common stock (in shares)        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period (in shares) 126,000,000 135,000,000 127,000,000 134,000,000
Balance at beginning of period $ 2 $ 2 $ 2 $ 2
Stock award plans (in shares)     2,000,000 3,000,000
Stock award plans     $ 0 $ 0
Common stock issuances (in shares) 2,000,000 0 2,000,000 1,000,000
Common stock issuances $ 0 $ 0 $ 0 $ 0
Conversions of Class A to Class B common stock (in shares) (3,000,000) (3,000,000) (6,000,000) (6,000,000)
Conversions of class A to class B common stock $ 0 $ 0 $ 0 $ 0
Balance at end of period (in shares) 125,000,000 132,000,000 125,000,000 132,000,000
Balance at end of period $ 2 $ 2 $ 2 $ 2
Common Stock | Class B common stock (in shares)        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period (in shares) 729,000,000 724,000,000 726,000,000 725,000,000
Balance at beginning of period $ 7 $ 7 $ 7 $ 7
Common stock purchases (in shares) 0 (4,000,000) 0 (8,000,000)
Common stock purchases $ 0 $ 0 $ 0 $ 0
Conversions of Class A to Class B common stock (in shares) 3,000,000 3,000,000 6,000,000 6,000,000
Conversions of class A to class B common stock $ 0 $ 0 $ 0 $ 0
Balance at end of period (in shares) 732,000,000 723,000,000 732,000,000 723,000,000
Balance at end of period $ 7 $ 7 $ 7 $ 7
Additional Paid-In Capital        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 0 0 0 0
Stock award plans 15 32 (103) 377
Common stock issuances 121 108 239 255
Common stock purchases 0 (135) 0 (627)
Other (3) 0 (5) 0 (5)
Balance at end of period 136 0 136 0
Retained Earnings        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 20,681 21,510 21,055 21,326
Common stock purchases 0 (615) 0 (873)
Net income attributable to common shareowners 1,409 2,081 2,522 3,976
Dividends (1,398) (1,393) (2,812) (2,846)
Other (3) 0 1 (73) 1
Balance at end of period 20,692 21,584 20,692 21,584
Noncontrolling Interests        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period 24 15 8 17
Change in noncontrolling interest (1) 3 15 1
Balance at end of period $ 23 $ 18 $ 23 $ 18