Income Taxes (Income Tax Reconciliation) (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
U.S. Federal taxes at statutory rate									$ 464,489	$ 96,191	$ 43,642
State and local taxes, net of U.S. Federal tax									35,242	2,941	8,887
Tax-free stock transactions									(91,540)	0	0
Tax provided on non-U.S. subsidiary earnings and distributions at less than the expected U.S. Federal statutory tax rate									2,186	767	(6,950)
Goodwill impairments									0	0	12,776
U.S. Federal Manufacturing Deducation tax benefits									(6,789)	(4,397)	(2,393)
Other, net									1,814	1,403	4,915
Total provision for income tax	191,900	58,200	78,600	77,400	24,100	29,900	31,700	15,800	406,100	101,500	73,400
State [Member]
Income Taxes [Line Items]
Valuation allowance against tax benefits									3,175	(2,638)	(3,443)
non-U.S. [Member]
Income Taxes [Line Items]
Valuation allowance against tax benefits									$ (2,477)	$ 7,233	$ 15,966