Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Schedule of Stockholders Equity, Share Issuance

Issuance of Shares

	Number of Shares	Price per Share		Proceeds		Net Proceeds
	(in millions, except share and per share amounts)
June 1, 2012(1)	13,428,770	$	12.85	$	173	$	173

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(1) Relates to the settlement of forward purchase contracts. See Note 17, Long-Term Debt and Credit Facilities.

Schedule of Share Repurchases

Share Repurchases

Year	Number of Shares Repurchased	Total Payments (in millions)		Average Price Paid Per Share
2015 (through February 26, 2015 on a settlement date basis)	3,581,767	$	92	$	25.63
2014	24,413,781	$	590	$	24.17
2013	12,512,759	264		21.12
2012	2,066,759	24		11.76