EMPLOYEE BENEFITS - Summary of Stock Options (Details) - Stock options - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, beginning balance (in shares)	14.4
Granted (in shares)	2.1
Exercised (in shares)	(1.5)
Forfeited (in shares)	(0.5)
Expired (in shares)	(0.2)
Outstanding, beginning balance (in shares)	14.3	14.4
Exercisable (in shares)	9.2
Expected to vest, net of estimated forfeitures (in shares)	4.8
Weighted- Average Exercise Price (in dollars)
Outstanding, beginning balance (in dollars per share)	$ 67.69
Granted (in dollars per share)	79.53
Exercised (in dollars per share)	64.72
Forfeited (in dollars per share)	66.91
Expired (in dollars per share)	92.76
Outstanding, ending balance (in dollars per share)	69.38	$ 67.69
Exercisable (in dollars per share)	70.00
Expected to vest, net of estimated forfeitures (in dollars per share)	$ 68.19
Weighted-Average Remaining Contractual Term (years)
Outstanding	6 years 1 month 6 days
Exercisable	4 years 11 months 19 days
Expected to vest, net of estimated forfeitures	8 years 1 month 28 days
Aggregate Intrinsic Value (in millions)
Outstanding	$ 177
Exercisable	112
Expected to vest, net of estimated forfeitures	$ 61
Weighted average grant date fair value (in dollars per share)	$ 16.11	$ 9.08	$ 10.05
Intrinsic value of options exercised	$ 25	$ 59	$ 48