Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015
Cash flows from operating activities
Net income	$ 1,165		$ 1,623
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses	610		(37)
Amortization of premiums/discounts on fixed maturities	376		71
Amortization of UPR related to the Chubb Corp acquisition	1,095		0
Deferred income taxes	48		108
Unpaid losses and loss expenses	330		(87)
Unearned premiums	(382)		420
Future policy benefits	106		114
Insurance and reinsurance balances payable	193		532
Accounts payable, accrued expenses, and other liabilities	18		48
Income taxes payable	67		(120)
Insurance and reinsurance balances receivable	(238)		(332)
Reinsurance recoverable on losses and loss expenses	(17)		55
Reinsurance recoverable on policy benefits	(11)		16
Deferred policy acquisition costs	(1,042)		(236)
Prepaid reinsurance premiums	12		(261)
Other	(177)		(23)
Net cash flows from operating activities	2,153		1,891
Cash flows from investing activities
Purchases of fixed maturities available for sale	(17,077)		(9,179)
Purchases of to be announced mortgage-backed securities	0		(31)
Purchases of fixed maturities held to maturity	(121)		(24)
Purchases of equity securities	(78)		(70)
Sales of fixed maturities available for sale	11,868		3,611
Sales of to be announced mortgage-backed securities	0		31
Sales of equity securities	932		102
Maturities and redemptions of fixed maturities available for sale	3,910		3,691
Maturities and redemptions of fixed maturities held to maturity	443		470
Net change in short-term investments	11,711		228
Net derivative instruments settlements	(93)		(33)
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	(14,248)		255
Other	81		(71)
Net cash flows used for investing activities	(2,672)		(1,020)
Cash flows from financing activities
Dividends paid on Common Shares	(530)		(427)
Common Shares repurchased	0		(750)
Proceeds from issuance of long-term debt	0		800
Proceeds from issuance of repurchase agreements	904		1,327
Repayment of long-term debt	0		(450)
Repayment of repurchase agreements	(902)		(1,327)
Proceeds from share-based compensation plans, including windfall tax benefits	92		46
Policyholder contract deposits	274		235
Policyholder contract withdrawals	(103)		(107)
Other	(4)		(6)
Net cash flows used for financing activities	(269)		(659)
Effect of foreign currency rate changes on cash and cash equivalents	24		(77)
Net (decrease) increase in cash	(764)		135
Cash – beginning of period	1,775	[1],[2]	655	[3]
Cash – end of period	1,011	[2],[4]	790	[3]
Supplemental cash flow information
Taxes paid	259		263
Interest paid	$ 319		$ 127

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At June 30, 2016 and December 31, 2015, 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. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At June 30, 2015 and 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 multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At June 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.