Business Changes and Developments - Business Developments (Details)	0 Months Ended		12 Months Ended
	Jun. 01, 2012		Dec. 31, 2013 Common Stock [Member]	Dec. 31, 2012 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]
Debt Instrument [Line Items]
Number of common shares repurchased			12,512,759	2,066,759	2,000,000
Issuance of common shares	13,428,770	[1]		13,428,770

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