Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Investments:
Fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of $35 and $78 (amortized cost of $8,188 and $8,204)	$ 8,663	$ 8,773
Short-term investments, at fair value	694	851
Other invested assets (includes $132 and $106, at fair value)	260	214
Total investments	9,617	9,838
Cash	101	162
Premiums receivable, net of commissions payable	1,378	1,372
Deferred acquisition costs	129	119
Salvage and subrogation recoverable	1,148	991
Financial guaranty variable interest entities’ assets, at fair value	271	296
Assets of consolidated investment vehicles (includes $4,116 and $1,727, at fair value)	4,371	1,913
Goodwill and other intangible assets	178	203
Other assets (includes $127 and $145, at fair value)	421	440
Total assets	17,614	15,334
Liabilities
Unearned premium reserve	3,716	3,735
Loss and loss adjustment expense reserve	981	1,088
Long-term debt	1,671	1,224
Credit derivative liabilities, at fair value	137	103
Financial guaranty variable interest entities’ liabilities with recourse, at fair value	281	316
Financial guaranty variable interest entities’ liabilities without recourse, at fair value	20	17
Liabilities of consolidated investment vehicles (includes $3,243 and $1,299, at fair value)	3,886	1,590
Other liabilities	526	556
Total liabilities	11,218	8,629
Commitments and contingencies (Note 13)
Redeemable noncontrolling interests (Note 9)	21	21
Shareholders’ equity
Common shares ($0.01 par value, 500,000,000 shares authorized; 71,241,940 and 77,546,896 shares issued and outstanding)	1	1
Retained earnings	5,924	6,143
Accumulated other comprehensive income, net of tax of $74 and $89	374	498
Deferred equity compensation	1	1
Total shareholders’ equity attributable to Assured Guaranty Ltd.	6,300	6,643
Nonredeemable noncontrolling interests (Note 9)	75	41
Total shareholders’ equity	6,375	6,684
Total liabilities, redeemable noncontrolling interests and shareholders’ equity	$ 17,614	$ 15,334