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Consolidated Statements of Cash Flows - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net income (loss) attributable to common stockholders | $ (17) | $ (437) | $ (216)
Net income (loss) | (16) | (437) | (216)
Adjustments to reconcile net income to net cash used in operating activities: |  |  |
Depreciation and amortization | 2 | 1 | 0
Amortization of bond premium and discount | (13) | (15) | (63)
Share-based compensation | 14 | 11 | 12
Deferred income taxes | 6 | (9) | 1
Current income taxes | (4) | 17 | 35
Unearned premiums, net | (82) | (48) | (132)
Losses and loss expenses, net | (147) | 76 | (364)
Ceded premiums payable | 6 | (3) | (4)
Premium receivables | 48 | 44 | 77
Accrued interest payable | 103 | 93 | 87
Amortization of intangible assets | 55 | 57 | 295
Net realized investment gains | (7) | (22) | (81)
Net realized gains (losses) on extinguishment of debt | (33) | 0 | 0
Other, net | (35) | 59 | 79
Net cash used in operating activities | (131) | (175) | (311)
Cash flows from investing activities: |  |  |
Proceeds from sales of bonds | 236 | 1,109 | 1,212
Proceeds from matured bonds | 698 | 137 | 379
Purchases of bonds | (343) | (975) | (959)
Proceeds from sales of other invested assets | 39 | 374 | 81
Purchases of other invested assets | (127) | (475) | (137)
Change in short-term investments | 98 | 158 | (218)
Change in cash collateral receivable | 9 | 0 | 100
Proceeds From Financial Guaranty Variable Interest Entity Assets | 171 | 178 | 543
Payments to Acquire Businesses, Net of Cash Acquired |  | (74) |
Other, net | (5) | 1 | (2)
Net cash provided by investing activities | 776 | 432 | 1,000
Cash flows from financing activities: |  |  |
Proceeds from Sale of Senior Surplus Notes | 11 | 0 | 0
Paydown of Ambac Note | (1,641) | (121) | (178)
Payments of Debt Issuance Costs | (12) | 0 | 0
Payment, Tax Withholding, Share-based Payment Arrangement | (6) | (3) | (3)
Paydown of Financial Guaranty Variable Interest Entity Liabilities | (170) | (178) | (542)
Net Cash Provided by (Used in) Financing Activities | (657) | (303) | (691)
Effect of Exchange Rate on Cash and Cash Equivalents | 0 | 0 | 0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect | (12) | (46) | (2)
Cash and cash equivalents end of period | 17 | 20 | 24
Supplemental disclosure of cash flow information |  |  |
Income Taxes Paid | 15 | 11 | 21
Cash payments related to reorganization items: |  |  |
Variable interest entity activities | (7) | (5) | (38)
Increase (Decrease) in Derivative Assets and Liabilities | (23) | 6 | (1)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 23 | 35 | 81
Proceeds From Issuance of Ambac UK Debt | 0 | 0 | 12
Proceeds from Issuance of Secured Debt | 1,163 |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | (1) |  |
Proceeds from (Payments to) Noncontrolling Interests | (1) |  |
Ambac Financial Group, Inc Parent Company Only [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income (loss) attributable to common stockholders | (17) | (437) | (216)
Net income (loss) | (17) | (437) | (216)
Adjustments to reconcile net income to net cash used in operating activities: |  |  |
Amortization of bond premium and discount | (9) | (6) | (6)
Share-based compensation | 14 | 11 | 12
Current income taxes | 1 | 30 | 15
Net realized investment gains | 5 | 1 | 2
Other, net | (6) | (10) | (6)
Net cash used in operating activities | (10) | 11 | 16
Cash flows from investing activities: |  |  |
Proceeds from matured bonds | 33 | 46 | 86
Purchases of bonds | (34) | (45) | (2)
Proceeds from sales of other invested assets | (8) | 0 | 0
Change in short-term investments | 105 | 89 | (125)
Payments to Acquire Businesses, Net of Cash Acquired |  | (74) |
Net cash provided by investing activities | 95 | 16 | (22)
Cash flows from financing activities: |  |  |
Net Cash Provided by (Used in) Financing Activities | (92) | (29) | 0
Cash and cash equivalents end of period | 1 | 7 | 9
Supplemental disclosure of cash flow information |  |  |
Income Taxes Paid | $ 0 | $ 0 | $ 1

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