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	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year	$ 19,803
Common stock purchases (in shares)	(12.8)	(19.0)	(2.6)
Common stock purchases	$ (2,300)	$ (3,500)	$ (500)
Net income attributable to controlling interests	6,708	11,548	$ 12,890
Balance at end of year	$ 17,314	$ 19,803
Dividends (in dollars per share)	$ 6.48	$ 6.08	$ 4.08
Excise taxes, percentage	1.00%
Dividends, common stock	$ 239	$ 249	$ 167
Common Class A
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	134.0
Balance at end of year (in shares)	127.0	134.0
Common Class B
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	725.0
Balance at end of year (in shares)	726.0	725.0
Common Stock | Common Class A
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	134.0	138.0	147.0
Balance at beginning of year	$ 2	$ 2	$ 2
Stock award plans (in shares)	5.0	5.0	6.0
Stock award plans	$ 0	$ 0	$ 0
Common stock issuances (in shares)	2.0	3.0	2.0
Common stock issuances	$ 0	$ 0	$ 0
Conversions of Class A to Class B common stock (in shares)	(14.0)	(12.0)	(17.0)
Conversions of class A to class B common stock	$ 0	$ 0	$ 0
Balance at end of year (in shares)	127.0	134.0	138.0
Balance at end of year	$ 2	$ 2	$ 2
Common Stock | Common Class B
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	725.0	732.0	718.0
Balance at beginning of year	$ 7	$ 7	$ 7
Common stock purchases (in shares)	(13.0)	(19.0)	(3.0)
Common stock purchases	$ 0	$ 0	$ 0
Conversions of Class A to Class B common stock (in shares)	14.0	12.0	17.0
Conversions of class A to class B common stock	$ 0	$ 0	$ 0
Balance at end of year (in shares)	726.0	725.0	732.0
Balance at end of year	$ 7	$ 7	$ 7
Additional Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year	0	1,343	865
Stock award plans	425	624	574
Common stock issuances	467	495	404
Common stock purchases	(882)	(2,462)	(500)
Other	(10)	0	0
Balance at end of year	0	0	1,343
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year	21,326	16,179	6,896
Common stock purchases	(1,368)	(1,038)	0
Net income attributable to controlling interests	6,708	11,548	12,890
Dividends	(5,611)	(5,363)	(3,604)
Other	0	0	(3)
Balance at end of year	21,055	21,326	16,179
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year	17	16	12
Change in non-controlling interests	(9)	1	4
Balance at end of year	$ 8	$ 17	$ 16