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DEBT - BNP Funding Facility Narrative (Details) - USD ($) |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2023 | Jan. 08, 2023 | Mar. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |
Principal amount of debt outstanding | $ 11,196,000,000 |  | $ 11,196,000,000 | $ 11,196,000,000 | $ 12,245,000,000
BNP Funding Facility | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of unused portion of line of credit commitment |  |  |  | 0.00% |
BNP Funding Facility | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of unused portion of line of credit commitment |  |  |  | 1.25% |
BNP Funding Facility | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity of line of credit | 500,000,000 |  | 500,000,000 | $ 500,000,000 |
Term of debt maturity extension option |  |  |  | 1 year |
Principal amount of debt outstanding | $ 320,000,000 |  | $ 320,000,000 | $ 320,000,000 | $ 245,000,000
BNP Funding Facility | Line of Credit | Secured Overnight Financing Rate (SOFR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate spread | 2.30% |  |  |  |
BNP Funding Facility | Line of Credit | Base Rate, During Reinvestment Period |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate spread |  | 1.80% | 2.30% |  |
BNP Funding Facility | Line of Credit | Base Rate, After Reinvestment Period |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate spread |  | 2.30% | 2.80% |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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