Shareholders' Equity and Earnings Per Common Share - Common Stock Rollforward (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Common shares, beginning balance	261,675,811	230,000,000
Common stock acquired - Share buyback	(7,500,000)	0
Issuance of shares for share-based incentive compensation, net	500,000	0
Common shares, ending balance	254,734,166	230,000,000
Common Stock, Issued
Common shares, beginning balance	261,800,000	230,100,000
Common stock acquired - Share buyback	0	0
Issuance of shares for share-based incentive compensation, net	800,000	0
Common shares, ending balance	262,600,000	230,100,000
Common Stock, Held in Treasury
Common shares, beginning balance	(100,000)	(100,000)
Common stock acquired - Share buyback	7,500,000	0
Issuance of shares for share-based incentive compensation, net	(300,000)	0
Common shares, ending balance	(7,900,000)	(100,000)