Consolidated Balance Sheets (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010
Assets
Fixed maturities available for sale, at fair value (amortized cost - $40,334 and $36,542) (includes hybrid financial instruments of $334 and $416)	$ 41,577		$ 37,539
Fixed maturities held to maturity, at amortized cost (fair value - $8,873 and $9,461)	8,731		9,501
Equity securities, at fair value (cost - $647 and $666)	621		692
Short-term investments, at fair value and amortized cost	2,376		1,983
Other investments (cost - $1,970 and $1,511)	2,194		1,692
Total investments	55,499		51,407
Cash	766	[1]	772	[1]
Securities lending collateral	1,269		1,495
Accrued investment income	563		521
Insurance and reinsurance balances receivable	5,403		4,233
Reinsurance recoverable on losses and loss expenses	12,837		12,871
Reinsurance recoverable on policy benefits	248		281
Deferred policy acquisition costs	1,792		1,641
Value of business acquired	757		634
Goodwill and other intangible assets	4,817		4,664
Prepaid reinsurance premiums	1,582		1,511
Deferred tax assets	623		769
Investments in partially-owned insurance companies (cost - $366 and $357)	371		360
Other assets	2,193		2,196
Total assets	88,720		83,355
Liabilities
Unpaid losses and loss expenses	38,476		37,391
Unearned premiums	6,594		6,330
Future policy benefits	4,376		3,106
Insurance and reinsurance balances payable	3,492		3,282
Deposit liabilities	653		421
Securities lending payable	1,290		1,518
Payable for securities purchased	362		292
Accounts payable, accrued expenses, and other liabilities	4,617		2,958
Income taxes payable	191		116
Short-term debt	1,250		1,300
Long-term debt	3,360		3,358
Trust preferred securities	309		309
Total liabilities	64,970		60,381
Commitments and contingencies
Shareholders' equity
Common Shares (CHF 30.27 and CHF 30.57 par value, 342,832,412 and 341,094,559 shares issued, 336,390,293 and 334,942,852 shares outstanding)	10,095		10,161
Common Shares in treasury (6,442,119 and 6,151,707 shares)	(350)		(330)
Additional paid in capital	5,405		5,623
Retained earnings	6,761		5,926
Deferred compensation obligation	2		2
Accumulated other comprehensive income (AOCI)	1,839		1,594
Common Shares issued to employee trust	(2)		(2)
Total shareholders' equity	23,750		22,974
Total liabilities and shareholders' equity	$ 88,720		$ 83,355

[1] ACE maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various ACE entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual ACE accounts are translated daily into a single currency and pooled on a notional basis. Individual ACE entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2011, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.