Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income before income taxes (benefit):
Domestic	$ 1,953,000,000	$ 1,398,000,000	$ 1,408,900,000
Foreign	527,600,000	457,100,000	302,300,000
Income before income tax expense and equity in loss of investee, net of tax	2,480,579,000	1,855,105,000	1,711,214,000
Current
Federal	700,900,000	507,900,000	231,700,000
State	98,400,000	35,600,000	15,100,000
Foreign	46,800,000	44,000,000	44,100,000
Total	846,100,000	587,500,000	290,900,000
Deferred
Federal	(200,600,000)	(133,000,000)	160,900,000
State	(35,900,000)	(13,000,000)	(8,100,000)
Foreign	(8,600,000)	29,100,000	800,000
Total	(245,077,000)	(116,900,000)	153,576,000
Total income tax expense	$ 601,014,000	$ 470,554,000	$ 444,528,000