SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Stock by Class (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common Stock Outstanding Roll Forward [Roll Forward]
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	(23,593,728)	(161,216,653)	(72,668,712)
Treasury Stock, Shares, Acquired	(20,887)	(6,629,415)	(10,457,772)
Stock Issued During Period, Shares, Treasury Stock Reissued	697,745	3,828,357
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	3,972,000	2,617,000	1,348,000
Common Class A
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	290,573,672	446,749,307	496,064,027
Conversion of Class B common stock to Class A common stock (in shares)	1,562,561	349,929	26,730,427
Stock Issued During Period, Shares, New Issues		40,000	6,897,190
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	1,080,548	822,732	184,147
Ending balance common stock, shares outstanding (in shares)	270,320,798	290,573,672	446,749,307
Common Class B
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	185,895,903	186,245,832	212,976,259
Conversion of Class B common stock to Class A common stock (in shares)	(1,562,561)	(349,929)	(26,730,427)
Stock Issued During Period, Shares, New Issues		0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	0	0
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	0	0	0
Stock Issued During Period, Shares, Treasury Stock Reissued	0	0
Ending balance common stock, shares outstanding (in shares)	184,333,342	185,895,903	186,245,832