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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Assets: |  |
Estimated Fair Value | $ 2,949 | $ 3,314
Other Investments | 595 | 478
Investments, Total | 3,544 | 3,792
Cash and cash equivalents | 20 | 24
Restricted Cash | 13 | 55
Premiums Receivable, Net | 370 | 416
Deferred ceded premium | 70 | 82
Subrogation recoverable | 2,156 | 2,029
Derivative assets | 93 | 75
Income Taxes Receivable, Current | 0 | 11
Intangible assets | 409 | 427
Other assets | 114 | 95
Total assets | 13,220 | 13,320
Liabilities: |  |
Unearned premiums | 456 | 518
Loss and loss expense reserves | 1,759 | 1,548
Ceded premiums payable | 27 | 29
Deferred Income Tax Liabilities, Net | 24 | 32
Taxes Payable, Current | 6 | 0
Long-term debt | 2,739 | 2,822
Accrued interest payable | 517 | 441
Derivative liabilities | 114 | 90
Other liabilities | 106 | 93
Variable interest entity liabilities: |  |
Total liabilities | $ 12,074 | $ 11,783
Preferred Stock, Shares Outstanding | 0 | 0
Preferred stock, shares authorized | 20,000,000 | 20,000,000
Stockholders’ equity: |  |
Preferred Stock, Value, Issued | $ 0 | $ 0
Common Stock, Value, Issued | 0 | 0
Additional paid-in capital | 242 | 232
Accumulated other comprehensive income (loss) | 79 | 42
Retained earnings | 759 | 1,203
Treasury Stock, Value | (1) | 0
Total Ambac Financial Group, Inc. stockholders’ equity | 1,080 | 1,477
Nonredeemable noncontrolling interest | 60 | 60
Total stockholders’ equity | 1,140 | 1,536
Total liabilities, redeemable noncontrolling interest and stockholders’ equity | 13,220 | 13,320
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 |
Uncollectable premium receivables | 17 |
Reinsurance Recoverables, Including Reinsurance Premium Paid | 33 | $ 26
Reinsurance Recoverable, Allowance for Credit Loss | $ 0 |
Preferred stock, par value | $ 0.01 | $ 0.01
Common stock, shares issued | 45,865,081 | 45,571,743
Common stock, shares authorized | 130,000,000 | 130,000,000
Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01
Fixed income securities, amortized cost | $ 2,807 | $ 3,187
Xchange |  |
Stockholders’ equity: |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 7 |
Variable Interest Entity [Member] |  |
Assets: |  |
Estimated Fair Value | 3,354 | 3,121
Restricted Cash | 2 | 2
Loans, at fair value | 2,998 | 3,108
Derivative assets | 41 | 52
Other assets | 2 | 3
Total assets | 6,398 | 6,286
Variable interest entity assets: |  |
Loans, at fair value | 2,998 | 3,108
Liabilities: |  |
Long-term debt | 4,493 | 4,554
Accrued interest payable | 0 | 1
Derivative liabilities | 1,835 | 1,657
Variable interest entity liabilities: |  |
Total liabilities | 6,328 | 6,212
Stockholders’ equity: |  |
Long-term Debt | 4,324 | 4,351
Fixed Income Securities [Member] |  |
Assets: |  |
Estimated Fair Value | 2,317 | 2,577
Investment income due and accrued | 10 |
Stockholders’ equity: |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 |
Fixed income securities, amortized cost | 2,175 | 2,450
Short-term Investments [Member] |  |
Assets: |  |
Estimated Fair Value | 492 | 653
Collateral Pledged [Member] |  |
Assets: |  |
Estimated Fair Value | 140 |
Collateral Pledged [Member] | Fixed Income Securities [Member] |  |
Assets: |  |
Estimated Fair Value | 15 | 85
Stockholders’ equity: |  |
Fixed income securities, amortized cost | 15 | 0
Collateral Pledged [Member] | Short-term Investments [Member] |  |
Assets: |  |
Estimated Fair Value | 125 | 85
Stockholders’ equity: |  |
Fixed income securities, amortized cost | $ 125 | $ 85

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- Definition The amount needed to reflect the estimated ultimate cost of settling claims relating to financial default insured events that have occurred on or before a particular date (ordinarily, the balance sheet date) and the amount needed to provide for the estimated ultimate cost required to investigate and settle claims relating to insured events that have occurred on or before a particular date (ordinarily, the balance sheet date), whether or not reported to the insurer at that date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6933001&loc=SL5747862-161289 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 9 -Subparagraph (a)(5)(vii) -URI http://asc.fasb.org/extlink&oid=99382878&loc=SL5749324-161292 + Details
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