Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues
Net earned premiums	$ 403	$ 344	$ 494
Net investment income	340	365	269
Asset management fees	0	53	93
Net realized investment gains (losses)	9	(14)	(56)
Fair value gains (losses) on credit derivatives	24	114	(11)
Fair value gains (losses) on committed capital securities	(10)	(35)	24
Fair value gains (losses) on financial guaranty variable interest entities	(11)	8	22
Fair value gains (losses) on consolidated investment vehicles	69	88	17
Foreign exchange gains (losses) on remeasurement	(27)	53	(112)
Fair value gains (losses) on trading securities	52	74	(34)
Gain on sale of asset management subsidiaries	0	262	0
Other income (loss)	23	61	17
Total revenues	872	1,373	723
Expenses
Loss and loss adjustment expenses (benefit)	(26)	162	16
Interest expense	91	90	81
Amortization of deferred acquisition costs	20	13	14
Employee compensation and benefit expenses	202	251	258
Other operating expenses	159	217	167
Total expenses	446	733	536
Income (loss) before income taxes and equity in earnings (losses) of investees	426	640	187
Equity in earnings (losses) of investees	62	28	(39)
Income (loss) before income taxes	488	668	148
Provision (benefit) for income taxes
Current	100	63	14
Deferred	(4)	(156)	(3)
Total provision (benefit) for income taxes	96	(93)	11
Net income (loss)	392	761	137
Less: Noncontrolling interests	16	22	13
Net income (loss) attributable to Assured Guaranty Ltd.	$ 376	$ 739	$ 124
Earnings per share:
Basic (in dollars per share)	$ 7.01	$ 12.54	$ 1.95
Diluted (in dollars per share)	$ 6.87	$ 12.30	$ 1.92