CONSOLIDATED BALANCE SHEET (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets
Fixed maturity investments, at fair value	$ 5,008.0	$ 5,030.5
Short-term investments, at amortized cost (which approximates fair value)	564.0	635.9
Common equity securities, at fair value	1,206.1	1,156.8
Convertible fixed maturity investments, at fair value	70.7	80.5
Other long-term investments	313.0	288.9
Total investments	7,161.8	7,192.6
Cash (restricted: $27.8 and $56.1)	331.0	382.8
Reinsurance recoverable on unpaid losses	433.2	428.1
Reinsurance recoverable on paid losses	18.9	25.4
Insurance and reinsurance premiums receivable	717.9	518.9
Funds held by ceding companies	89.0	106.3
Investments in unconsolidated affiliates	419.1	321.4
Deferred acquisition costs	191.2	174.7
Deferred tax asset	462.8	512.1
Ceded unearned insurance and reinsurance premiums	142.0	92.4
Accrued investment income	43.6	39.3
Accounts receivable on unsettled investment sales	76.6	12.1
Other assets	520.1	458.1
Assets held for sale	1,750.7	1,880.1
Total assets	12,357.9	12,144.3
Liabilities
Loss and loss adjustment expense reserves	3,053.3	3,079.3
Unearned insurance and reinsurance premiums	1,093.4	901.4
Variable annuity benefit guarantee	31.8	52.8
Debt	677.5	676.4
Deferred tax liability	336.5	356.2
Accrued incentive compensation	157.9	218.3
Ceded reinsurance payable	159.2	71.9
Funds held under insurance and reinsurance contracts	124.0	127.1
Accounts payable on unsettled investment purchases	28.2	20.5
Other liabilities	336.8	362.9
Liabilities held for sale	1,750.7	1,880.1
Total liabilities	7,749.3	7,746.9
White Mountains’s common shareholders’ equity
White Mountains’ common shares	6.2	6.2
Paid-in surplus	1,047.7	1,044.9
Retained earnings	2,965.8	2,802.3
Accumulated other comprehensive income (loss), after tax:
Equity in net unrealized gains (losses) from investments in Symetra common shares	29.0	(40.4)
Net unrealized foreign currency translation gains	52.5	88.4
Pension liability and other	4.3	4.1
Total White Mountains’s common shareholders’ equity	4,105.5	3,905.5
Non-controlling interests
Total non-controlling interests	503.1	491.9
Total equity	4,608.6	4,397.4
Total liabilities and equity	12,357.9	12,144.3
OneBeacon
Non-controlling interests
Total non-controlling interests	280.6	273.7
Sirius Group
Non-controlling interests
Total non-controlling interests	250.0	250.0
HG Global
Non-controlling interests
Total non-controlling interests	18.2	16.6
BAM
Non-controlling interests
Total non-controlling interests	(107.2)	(97.6)
Other Noncontrolling Interest [Member]
Non-controlling interests
Total non-controlling interests	$ 61.5	$ 49.2