DEBT - Fixed Rate Notes (Details)	1 Months Ended					3 Months Ended		9 Months Ended
	May 31, 2024 USD ($)	Jun. 30, 2023 JPY (¥)	May 31, 2022 USD ($)	May 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Outstanding aggregate principal amount						$ 11,883,000,000		$ 11,883,000,000
Senior Notes
Debt Instrument [Line Items]
Outstanding aggregate principal amount						11,883,000,000		11,883,000,000		$ 10,638,000,000
Interest expense and fees						100,000,000	$ 84,000,000	274,000,000	$ 250,000,000
Fixed-Rate Notes Issued May 2024 | Senior Notes
Debt Instrument [Line Items]
Face amount	$ 1,300,000,000
Redemption price (in percent)	101.00%
Fixed-Rate Notes Issued June 2023 | Senior Notes
Debt Instrument [Line Items]
Face amount		¥ 90,000,000,000				$ 633,000,000		$ 633,000,000
Redemption price (in percent)		101.00%
Fixed-Rate Notes Issued May 2022 | Senior Notes
Debt Instrument [Line Items]
Face amount			$ 3,000,000,000
Redemption price (in percent)			101.00%
Fixed-rate Notes Issued May 2020 | Senior Notes
Debt Instrument [Line Items]
Face amount				$ 4,000,000,000
Redemption price (in percent)				101.00%
Fixed-rate Notes Issued September 2019 | Senior Notes
Debt Instrument [Line Items]
Face amount					$ 5,000,000,000
Redemption price (in percent)					101.00%