Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Assets
Fixed maturities available for sale, at fair value (amortized cost - $47,481 and $44,666) (includes hybrid financial instruments of $291 and $309)	$ 48,529		$ 47,306
Fixed maturities held to maturity, at amortized cost (fair value – $6,493 and $7,633)	6,306		7,270
Equity securities, at fair value (cost – $835 and $707)	831		744
Short-term investments, at fair value and amortized cost	1,774		2,228
Other investments (cost – $2,616 and $2,465)	2,902		2,716
Total investments	60,342		60,264
Cash	768	[1],[2]	615	[1],[3]
Securities lending collateral	1,517		1,791
Accrued investment income	563		552
Insurance and reinsurance balances receivable	5,089		4,147
Reinsurance recoverable on losses and loss expenses	11,477		12,078
Reinsurance recoverable on policy benefits	237		241
Deferred policy acquisition costs	2,224		1,873
Value of business acquired	554		614
Goodwill and other intangible assets	5,465		4,975
Prepaid reinsurance premiums	1,724		1,617
Deferred tax assets	584		453
Investments in partially-owned insurance companies (cost – $465 and $451)	468		454
Other assets	3,572		2,871
Total assets	94,584		92,545
Liabilities
Unpaid losses and loss expenses	37,882		37,946
Unearned premiums	7,794		6,864
Future policy benefits	4,596		4,470
Insurance and reinsurance balances payable	3,627		3,472
Securities lending payable	1,520		1,795
Accounts payable, accrued expenses, and other liabilities	4,917		5,377
Income taxes payable	12		20
Short-term debt	1,902		1,401
Long-term debt	3,807		3,360
Trust preferred securities	309		309
Total liabilities	66,366		65,014
Commitments and contingencies
Shareholders’ equity
Common Shares (CHF 27.49 and CHF 28.89 par value; 342,832,412 shares issued; 340,069,972 and 340,321,534 shares outstanding)	9,073		9,591
Common Shares in treasury (2,762,440 and 2,510,878 shares)	(222)		(159)
Additional paid-in capital	5,200		5,179
Retained earnings	12,793		10,033
Accumulated other comprehensive income (AOCI)	1,374		2,887
Total shareholders’ equity	28,218		27,531
Total liabilities and shareholders’ equity	$ 94,584		$ 92,545

[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, 2013 and December 31, 2012, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] 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, 2013, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] 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 December 31, 2012, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.