DEBT - Senior Notes (Details) - USD ($) $ in Millions	12 Months Ended			24 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Debt Instruments [Line Items]
(Gain)/Loss	$ 10	$ 31	$ 0
Debt Instrument, Cumulative Repurchase Cost				$ 1,200
Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	233	1,061		233
Net Adjustments	(2)	(10)		(2)
Book Value	231	1,051
Redemption Value	221	1,007		221
(Gain)/Loss	10	44
Debt Instrument, Cumulative Repurchased Face Amount				1,300
4.375% Senior Notes Due 2028 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	46	171		46
Net Adjustments	(1)	(2)		(1)
Book Value	45	169
Redemption Value	43	163		43
(Gain)/Loss	2	6
5.25% Senior Notes Due 2029 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	31	97		31
Net Adjustments	0	(1)		0
Book Value	31	96
Redemption Value	31	93		31
(Gain)/Loss	0	3
4.25% Senior Notes Due 2030 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	50	101		50
Net Adjustments	(1)	(1)		(1)
Book Value	49	100
Redemption Value	46	93		46
(Gain)/Loss	3	7
4.625% Senior Notes Due 2030 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	28	228		28
Net Adjustments	0	(2)		0
Book Value	28	226
Redemption Value	26	215		26
(Gain)/Loss	2	11
5.00% Senior Notes due March 2027 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	17	131		17
Net Adjustments	0	(1)		0
Book Value	17	130
Redemption Value	17	130		17
(Gain)/Loss	0	0
4.125% Senior Notes due 2028 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount	61	153		61
Net Adjustments	0	(1)		0
Book Value	61	152
Redemption Value	58	143		$ 58
(Gain)/Loss	$ 3	9
5.40% Senior Notes due 2034 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount		20
Net Adjustments		0
Book Value		20
Redemption Value		20
(Gain)/Loss		0
5.450% Senior Notes Due 2043 | Senior Notes
Debt Instruments [Line Items]
Debt instrument, face amount		160
Net Adjustments		(2)
Book Value		158
Redemption Value		150
(Gain)/Loss		$ 8