EARNINGS PER SHARE - Schedule of Earnings per Share (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income (Numerator)
Net income	$ 25	$ 193
Net loss attributable to the redeemable noncontrolling interests	0	4
Net income attributable to the noncontrolling interests	(2)	(12)
Net (loss) income attributable to SBG	23	185
Numerator for diluted earnings per common share available to common shareholders	$ 23	$ 185
Shares (Denominator)
Basic weighted-average common shares outstanding (in shares)	64,156	69,744
Dilutive effect of stock-settled appreciation rights and outstanding stock options (in shares)	247	120
Diluted weighted-average common and common equivalent shares outstanding (in shares)	64,403	69,864
Antidilutive Securities Excluded from Computation
Weighted-average stock-settled appreciation rights and outstanding stock options excluded (in shares)	5,120	3,645