Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Cash Flows From Operating Activities
Net income	$ 614.7		$ 633.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	46.7		49.0
Amortization of fixed-income securities	38.1		76.8
Amortization of equity-based compensation	29.8		35.1
Net realized (gains) losses on securities	(159.8)		(213.5)
Net (gains) losses on disposition of property and equipment	3.3		2.0
Changes in:
Premiums receivable	(255.4)		(218.4)
Reinsurance recoverables	(44.8)		(61.2)
Prepaid reinsurance premiums	(14.9)		(13.3)
Deferred acquisition costs	(31.4)		(33.6)
Income taxes	53.6		43.0
Unearned premiums	407.7		393.5
Loss and loss adjustment expense reserves	160.1		248.0
Accounts payable, accrued expenses, and other liabilities	164.0		168.6
Other, net	29.5		28.0
Net cash provided by operating activities	1,041.2		1,137.2
Purchases:
Fixed maturities	(3,332.1)		(4,262.6)
Equity securities	(176.7)		(208.2)
Sales:
Fixed maturities	3,329.3		1,872.2
Equity securities	446.4		242.1
Maturities, paydowns, calls, and other:
Fixed maturities	1,117.8		862.1
Equity securities	14.2		0
Net sales (purchases) of short-term investments	(1,846.0)		430.6
Net unsettled security transactions	174.5		207.9
Purchases of property and equipment	(44.7)		(69.5)
Sales of property and equipment	3.1		1.6
Net cash used in investing activities	(314.2)		(923.8)
Cash Flows From Financing Activities
Tax benefit from vesting of equity-based compensation	10.7		7.4
Proceeds from Issuance of Debt	344.7		0
Dividends paid to shareholders	(892.6)	[1]	(175.6)	[1]
Acquisition of treasury shares	(140.0)		(126.7)
Net cash used in financing activities	(677.2)		(294.9)
Effect of exchange rate changes on cash	1.2		(0.7)
Increase (decrease) in cash	51.0		(82.2)
Cash, Beginning of year	75.1		179.1
Cash, End of year	$ 126.1		$ 96.9

[1] Progressive maintains an annual dividend program. See Note 8 - Dividends for further discussion.