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INCOME AND EXCISE TAXES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Capital loss carryforward | $ 92.0 |  |  |  |  |  |  |  |  |
Carry forward of excess distributable earnings | 675.0 | $ 679.0 | $ 471.0 |  |  |  |  |  |  |
Excise tax expense | 30.0 | 24.0 | 17.0 |  |  |  |  |  |  |
Refund request for overpayment of excise taxes |  | 1.0 | 1.0 |  |  |  |  |  |  |
Tax cost basis | 22,000.0 | 19,900.0 |  |  |  |  |  |  |  |
Aggregate gross unrealized gain for federal tax purposes | 1,000.0 | 800.0 |  |  |  |  |  |  |  |
Aggregate gross unrealized loss for federal tax purposes | 1,200.0 | 700.0 |  |  |  |  |  |  |  |
Amortized Cost | 22,043.0 | 19,810.0 |  |  |  |  |  |  |  |
Tax reclassification of stockholders' equity, increase (decrease) | 0.0 | 0.0 | 0.0 |  |  |  |  |  |  |
Income tax expense, including excise tax | 55.0 | 29.0 | 19.0 |  |  |  |  |  |  |
Total stockholders’ equity | 9,555.0 | 8,868.0 | 7,176.0 | $ 7,467.0 | $ 7,300.0 | $ 7,098.0 | $ 5,165.0 | $ 5,173.0 | $ 5,284.0 | $ 4,904.0
Subsidiaries |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Income tax expense, including excise tax | 25.0 | 6.0 | 2.0 |  |  |  |  |  |  |
Capital in Excess of Par Value |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Tax reclassification of stockholders' equity, increase (decrease) | (22.0) | 40.0 | (8.0) |  |  |  |  |  |  |
Total stockholders’ equity | 9,556.0 | 8,553.0 | 7,656.0 | 7,760.0 |  |  |  |  |  |
Accumulated Undistributed (Overdistributed) Earnings |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Tax reclassification of stockholders' equity, increase (decrease) | 22.0 | (40.0) | 8.0 |  |  |  |  |  |  |
Total stockholders’ equity | (2.0) | 315.0 | $ (480.0) | $ (293.0) |  |  |  |  |  |
Retained Earnings, Accumulated Undistributed Net Investment Income |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Total stockholders’ equity | 519.0 | 253.0 |  |  |  |  |  |  |  |
Retained Earnings, Accumulated Net Realized Losses |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Total stockholders’ equity | (146.0) | (88.0) |  |  |  |  |  |  |  |
Retained Earnings, Accumulated Net Unrealized Gains |  |  |  |  |  |  |  |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |  |  |  |  |  |  |  |
Total stockholders’ equity | $ (375.0) | $ 150.0 |  |  |  |  |  |  |  |

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- Definition The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI https://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707 Reference 4: 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(31)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: 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(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: 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(30)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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