Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2015

Equity [Abstract]

Changes in Accumulated Other Comprehensive Income by Component

Changes in Accumulated Other Comprehensive Income by Component

First Quarter 2015

	Net Unrealized Gains (Losses) on Investments with no Other-Than-Temporary Impairment			Net Unrealized Gains (Losses) on Investments with Other-Than-Temporary Impairment			Cumulative Translation Adjustment			Cash Flow Hedge			Total Accumulated Other Comprehensive Income
	(in millions)
Balance, December 31, 2014	$	367		$	4		$	(10	)	$	9		$	370
Other comprehensive income (loss) before reclassifications	18			(2		)	(5		)	—			11
Amounts reclassified from AOCI to:
Net realized investment gains (losses)	(20		)	4			—			—			(16		)
Interest expense	—			—			—			(1		)	(1		)
Total before tax	(20		)	4			—			(1		)	(17		)
Tax (provision) benefit	7			(1		)	—			0			6
Total amount reclassified from AOCI, net of tax	(13		)	3			—			(1		)	(11		)
Net current period other comprehensive income (loss)	5			1			(5		)	(1		)	0
Balance, March 31, 2015	$	372		$	5		$	(15	)	$	8		$	370

Changes in Accumulated Other Comprehensive Income by Component

First Quarter 2014

	Net Unrealized Gains (Losses) on Investments with no Other-Than-Temporary Impairment			Net Unrealized Gains (Losses) on Investments with Other-Than-Temporary Impairment			Cumulative Translation Adjustment			Cash Flow Hedge			Total Accumulated Other Comprehensive Income
	(in millions)
Balance, December 31, 2013	$	178		$	(24	)	$	(3	)	$	9		$	160
Other comprehensive income (loss) before reclassifications	94			8			1			—			103
Amounts reclassified from AOCI to:
Net realized investment gains (losses)	(2		)	5			—			—			3
Interest expense	—			—			—			0			0
Total before tax	(2		)	5			—			0			3
Tax (provision) benefit	1			(2		)	—			(1		)	(2		)
Total amount reclassified from AOCI, net of tax	(1		)	3			—			(1		)	1
Net current period other comprehensive income (loss)	93			11			1			(1		)	104
Balance, March 31, 2014	$	271		$	(13	)	$	(2	)	$	8		$	264

Schedule of Share Repurchases

Share Repurchases

Period	Number of Shares Repurchased	Total Payments(in millions)		Average Price Paid Per Share
2013	12,512,759	$	264	$	21.12
2014 (January 1 - March 31)	1,350,443	35		25.92
2014 (April 1 - June 30)	7,051,842	177		25.14
2014 (July 1 - September 30)	9,623,309	226		23.47
2014 (October 1 - December 31)	6,388,187	152		23.83
Total 2014	24,413,781	590		24.17
2015 (January 1 - March 31)	5,860,291	152		25.87
Total 2015 (through March 31)	5,860,291	152		25.87
2015 (April 1 - through May 8)	2,058,927	56		27.36
Total 2015	7,919,218	208		26.26
Cumulative repurchases since the beginning of 2013	44,845,758	$	1,062	$	23.69