Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Cash flows from operating activities
Net income	$ 2,834		$ 2,853		$ 3,758
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses	420		507		(504)
Amortization of premiums/discounts on fixed maturities	158		188		268
Deferred income taxes	113		145		240
Unpaid losses and loss expenses	(375)		317		(365)
Unearned premiums	335		441		402
Future policy benefits	216		236		191
Insurance and reinsurance balances payable	268		376		176
Accounts payable, accrued expenses, and other liabilities	179		13		37
Income taxes payable	(148)		103		(45)
Insurance and reinsurance balances receivable	(53)		(469)		(624)
Reinsurance recoverable on losses and loss expenses	218		119		787
Reinsurance recoverable on policy benefits	33		4		23
Deferred policy acquisition costs	(435)		(397)		(503)
Prepaid reinsurance premiums	(212)		(89)		(31)
Other	313		149		212
Net cash flows from operating activities	3,864		4,496		4,022
Cash flows from investing activities
Purchases of fixed maturities available for sale	(16,040)		(15,553)		(21,340)
Purchases of to be announced mortgage-backed securities	(31)				(58)
Purchases of fixed maturities held to maturity	(62)		(267)		(447)
Purchases of equity securities	(158)		(251)		(264)
Sales of fixed maturities available for sale	10,783		7,482		10,355
Sales of to be announced mortgage-backed securities	31				58
Sales of equity securities	183		670		142
Maturities and redemptions of fixed maturities available for sale	6,567		6,413		6,941
Maturities and redemptions of fixed maturities held to maturity	669		875		1,488
Net change in short-term investments	(8,216)		(603)		524
Net derivative instruments settlements	(21)		(230)		(471)
Acquisition of subsidiaries (net of cash acquired of $20, $38, and $8)	264		(766)		(977)
Other	(263)		(274)		(393)
Net cash flows used for investing activities	(6,294)		(2,504)		(4,442)
Cash flows from financing activities
Dividends paid on Common Shares	(862)		(862)		(517)
Common Shares repurchased	(758)		(1,429)		(287)
Proceeds from issuance of long-term debt	6,090		699		947
Proceeds from issuance of repurchase agreements	2,029		1,978		2,572
Repayment of repurchase agreements	(2,027)		(1,977)		(2,572)
Repayments of Long-term Debt	(1,150)		(501)
Proceeds from share-based compensation plans, including windfall tax benefits	131		127		135
Additions to Contract Holders Funds	503		366		233
Withdrawal from Contract Holders Funds	(221)		(172)		(120)
Other	(40)		(6)		0
Net cash flows (used for) from financing activities	3,695		(1,777)		391
Effect of foreign currency rate changes on cash and cash equivalents	(145)		(139)		(7)
Net increase (decrease) in cash	1,120		76		(36)
Cash – beginning of year	655	[1],[2],[3]	579	[1],[4]	615	[4]
Cash – end of year	1,775	[2],[5]	655	[1],[2],[3]	579	[1],[4]
Supplemental cash flow information
Taxes paid	469		349		218
Interest paid	$ 259		$ 264		$ 253

[1] Chubb maintains two notional multi-currency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information. At December 31, 2014 and 2013, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multi-currency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information. At December 31, 2015 and 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information. At December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[4] Chubb maintains two notional multi-currency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information. At December 31, 2013 and 2012, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[5] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Refer to Note 1 f) for additional information. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.