Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 197	$ 146
Total assets	8,699	9,095
Liabilities:
Total liabilities	7,584	7,670
Commitments and contingencies (Refer to Note 20)
Equity:
Preferred stock, par value $1 per share; authorized shares--10,000,000; issued and outstanding--none	0	0
Common stock, par value $1 per share; authorized shares--400,000,000; issued shares-- 283,625,689 and 283,717,973	284	284
Additional paid-in capital	3,154	3,171
Retained earnings	1,018	1,095
Accumulated other comprehensive income (loss), net of tax of $7 and &16	(255)	(19)
Treasury stock, at cost-- 192,963,698 and 192,233,526 shares	(3,098)	(3,118)
Total shareholders' equity of MBIA Inc.	1,103	1,413
Preferred stock of subsidiary	12	12
Total equity	1,115	1,425
Total liabilities and equity	8,699	9,095
Non Variable Interest Entity [Member]
Assets
Fixed-maturity securities held as available-for-sale, at fair value (amortized cost $3,665 and $3,728)	3,615	3,712
Investments carried at fair value	225	200
Investments pledged as collateral, at fair value (amortized cost $37 and $147)	36	148
Short-term investments held as available-for-sale, at fair value (amortized cost $479 and $589)	478	589
Other investments (includes investments at fair value of $0 and $4)	1	6
Total investments	4,355	4,655
Cash and cash equivalents	179	122
Premiums receivable	349	369
Deferred acquisition costs	87	95
Insurance loss recoverable	1,359	511
Assets held for sale	0	0
Deferred income taxes, net	0	0
Other assets	167	128
Liabilities:
Unearned premium revenue	678	752
Loss and loss adjustment expense reserves	1,035	979
Long-term debt	2,184	2,121
Medium-term notes (includes financial instruments carried at fair value of $149 and $115)	761	765
Investment agreements	312	337
Derivative liabilities	189	262
Liabilities held for sale	0	0
Other liabilities	205	165
Variable Interest Entity Primary Beneficiary [Member]
Assets
Investments carried at fair value	169	182
Other assets	28	33
Cash	18	24
Investments held-to-maturity, at amortized cost (fair value $892 and $916)	890	890
Loans receivable at fair value	683	1,679
Loan repurchase commitments	415	407
Liabilities:
Variable interest entity notes (includes financial instruments carried at fair value of $981 and $1,069)	$ 2,220	$ 2,289