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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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