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DEBT - Schedule of Outstanding Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Feb. 28, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	$ 16,851		$ 16,221
Principal Amount Outstanding	11,905		12,245
Carrying Value	11,884		12,210
Interest rate swap
Debt Instrument [Line Items]
Change in fair value result effective hedging relationship	15
Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity increase under line of credit	7,137		7,265
SMBC Funding Facility
Debt Instrument [Line Items]
Borrowing capacity increase under line of credit	1,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	4,758		4,843
Principal Amount Outstanding	1,413		2,246
Carrying Value	1,413		2,246
Line of Credit | Revolving Funding Facility
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	1,775		1,775
Principal Amount Outstanding	863		800
Carrying Value	863		800
Line of Credit | SMBC Funding Facility
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	800		800
Principal Amount Outstanding	401		451
Carrying Value	401		451
Line of Credit | BNP Funding Facility
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	865		300
Principal Amount Outstanding	575		245
Carrying Value	575		245
Convertible Debt | 2024 Convertible Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	403		403
Principal Amount Outstanding	403		403
Carrying Value	402		399
Senior Notes | 2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	0	$ 750	750
Principal Amount Outstanding	0		750
Carrying Value	0		750
Senior Notes | 2024 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	900		900
Principal Amount Outstanding	900		900
Carrying Value	899		898
Senior Notes | March 2025 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	600		600
Principal Amount Outstanding	600		600
Carrying Value	599		597
Senior Notes | July 2025 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	1,250		1,250
Principal Amount Outstanding	1,250		1,250
Carrying Value	1,255		1,258
Senior Notes | January 2026 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	1,150		1,150
Principal Amount Outstanding	1,150		1,150
Carrying Value	1,146		1,144
Senior Notes | July 2026 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	1,000		1,000
Principal Amount Outstanding	1,000		1,000
Carrying Value	993		991
Senior Notes | January 2027 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	900		0
Principal Amount Outstanding	900		0
Carrying Value	905		0
Senior Notes | June 2027 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	500		500
Principal Amount Outstanding	500		500
Carrying Value	495		494
Senior Notes | 2028 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	1,250		1,250
Principal Amount Outstanding	1,250		1,250
Carrying Value	1,247		1,247
Senior Notes | 2031 Notes
Debt Instrument [Line Items]
Aggregate principal amount of unsecured notes	700		700
Principal Amount Outstanding	700		700
Carrying Value	$ 691		$ 690

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