Stock-Based Incentive Compensation Plans (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Stock options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted		1,019,968
Performance Shares [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted		260,114
Stock Appreciation Rights [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted		112,990
Restricted Stock Units [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	5,994	559,198
Non-employee Agent Stock Options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted		82,317
Non-employee Director Stock Options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted		58,720
Non-employee Director Restricted Stock Units [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Shares granted	7,847	26,991