Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Statement of Cash Flows [Abstract]
Net cash flows provided by (used in) operating activities				$ 220	$ 1
Fixed-maturity securities, available-for-sale:
Purchases				(1,226)	(968)
Sales	$ 106		$ 87	533	575
Maturities and paydowns				1,104	577
Short-term investments with original maturities of over three months:
Purchases				(3)	(1)
Maturities and paydowns				0	5
Net sales (purchases) of short-term investments with original maturities of less than three months				(103)	172
Sales of fixed-maturity securities, trading				8	233
Maturities and paydowns of fixed-maturity securities, trading				14	5
Paydowns of financial guaranty variable interest entities’ assets				16	18
Purchases of and contributions to other invested assets				(95)	(103)
Sales of and return of capital from other invested assets				39	35
Other				(9)	(4)
Net cash flows provided by (used in) investing activities				278	544
Cash flows from financing activities:
Dividends paid				(53)	(52)
Repurchases of common shares				(369)	(412)
Net paydowns of financial guaranty variable interest entities’ liabilities				(13)	(157)
Payments related to tax withholding for share-based compensation				(34)	(30)
Other				2	2
Distributions to noncontrolling interests from consolidated investment vehicles				0	(10)
Net cash flows provided by (used in) financing activities				(467)	(659)
Effect of foreign exchange rate changes				5	2
Increase (decrease) in cash and cash equivalents and restricted cash				36	(112)
Cash and cash equivalents and restricted cash at beginning of period		$ 174		128	286	$ 286
Cash and cash equivalents and restricted cash at end of period	164	128	174	164	174	128
Supplemental cash flow information
Income taxes paid (received)				40	59
Interest paid on long-term debt				63	66
Supplemental disclosure of non-cash activities:
Receipt of fixed-maturity securities, available-for-sale				9	0
Reconciliation of cash and cash equivalents and restricted cash to the condensed consolidated balance sheets:
Cash	157	121	147	157	147	121
Cash and cash equivalents of consolidated investment vehicles	4		23	4	23
Restricted cash (included in other assets)	3		4	3	4
Cash and cash equivalents and restricted cash at end of period	$ 164	$ 128	$ 174	$ 164	$ 174	$ 128

ASSURED GUARANTY LTD 10-Q