Debt and Other Financing (Debt) (Details) (USD $) In Millions, unless otherwise specified																															12 Months Ended
	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012	Apr. 30, 2003	Dec. 31, 2013 Four Point Eight Percent Notes, Due March Two Thousand Thirteen [Member]	Dec. 31, 2012 Four Point Eight Percent Notes, Due March Two Thousand Thirteen [Member]	Mar. 31, 2008 Four Point Eight Percent Notes, Due March Two Thousand Thirteen [Member]	Dec. 31, 2013 Four Point Six Two Five Percent Notes, Due May Two Thousand Thirteen [Member]	Dec. 31, 2012 Four Point Six Two Five Percent Notes, Due May Two Thousand Thirteen [Member]	May 31, 2003 Four Point Six Two Five Percent Notes, Due May Two Thousand Thirteen [Member]	Dec. 31, 2013 Five Point Six Two Five Percent Notes, Due March Two Thousand Fourteen [Member]	Dec. 31, 2012 Five Point Six Two Five Percent Notes, Due March Two Thousand Fourteen [Member]	Mar. 31, 2009 Five Point Six Two Five Percent Notes, Due March Two Thousand Fourteen [Member]	Dec. 31, 2013 Term Loan, 25% due June 2014 and remaining due June 2015 [Member]	Dec. 31, 2012 Term Loan, 25% due June 2014 and remaining due June 2015 [Member]	Dec. 31, 2013 Two Point Six Percent Notes, Due November Two Thousand Fifteen [Member]	Dec. 31, 2012 Two Point Six Percent Notes, Due November Two Thousand Fifteen [Member]	Nov. 23, 2010 Two Point Six Percent Notes, Due November Two Thousand Fifteen [Member]	Dec. 31, 2013 Two Point Three Seven Five Percent Notes, Due March Two Thousand Sixteen [Member]	Mar. 31, 2013 Two Point Three Seven Five Percent Notes, Due March Two Thousand Sixteen [Member]	Dec. 31, 2012 Two Point Three Seven Five Percent Notes, Due March Two Thousand Sixteen [Member]	Dec. 31, 2013 Five Point Seven Five Percent Notes, Due March Two Thousand Eighteen [Member]	Dec. 31, 2012 Five Point Seven Five Percent Notes, Due March Two Thousand Eighteen [Member]	Mar. 31, 2008 Five Point Seven Five Percent Notes, Due March Two Thousand Eighteen [Member]	Dec. 31, 2013 Four Point Two Percent Notes, Due July Two Thousand Eighteen [Member]	Dec. 31, 2012 Four Point Two Percent Notes, Due July Two Thousand Eighteen [Member]	Jun. 30, 2003 Four Point Two Percent Notes, Due July Two Thousand Eighteen [Member]	Dec. 31, 2013 Six Point Five Percent Notes, Due March Two Thousand Nineteen [Member]	Dec. 31, 2012 Six Point Five Percent Notes, Due March Two Thousand Nineteen [Member]	Mar. 31, 2009 Six Point Five Percent Notes, Due March Two Thousand Nineteen [Member]	Dec. 31, 2013 Other, payable through 2019 with interest from 2.40% to 6.50% [Member]	Dec. 31, 2012 Other, payable through 2019 with interest from 2.40% to 6.50% [Member]	Dec. 31, 2013 Four Point Six Zero Percent Notes, Due March Two Thousand Twenty [Member]	Mar. 31, 2013 Four Point Six Zero Percent Notes, Due March Two Thousand Twenty [Member]	Dec. 31, 2012 Four Point Six Zero Percent Notes, Due March Two Thousand Twenty [Member]	Dec. 31, 2013 Four Point Zero Three Percent Notes, Due November Two Thousand Twenty [Member]	Dec. 31, 2012 Four Point Zero Three Percent Notes, Due November Two Thousand Twenty [Member]	Nov. 23, 2010 Four Point Zero Three Percent Notes, Due November Two Thousand Twenty [Member]	Dec. 31, 2013 Four Point One Eight Percent Notes, Due November Two Thousand Twenty Two [Member]	Dec. 31, 2012 Four Point One Eight Percent Notes, Due November Two Thousand Twenty Two [Member]	Nov. 23, 2010 Four Point One Eight Percent Notes, Due November Two Thousand Twenty Two [Member]	Dec. 31, 2013 Five Point Zero Percent Notes, Due March Two Thousand Twenty-Three [Member]	Mar. 31, 2013 Five Point Zero Percent Notes, Due March Two Thousand Twenty-Three [Member]	Dec. 31, 2012 Five Point Zero Percent Notes, Due March Two Thousand Twenty-Three [Member]	Dec. 31, 2013 Six Point Nine Five Percent Notes, Due March Two Thousand Forty-Three [Member]	Mar. 31, 2013 Six Point Nine Five Percent Notes, Due March Two Thousand Forty-Three [Member]	Dec. 31, 2012 Six Point Nine Five Percent Notes, Due March Two Thousand Forty-Three [Member]
Notes payable	$ 159.4		$ 180.6
Current portion of long-term debt	28.6		391.4
Total	188.0		572.0
Notes					0	250.0		0	124.0		0	499.4							249.9		0	249.6	249.6		249.6	249.6		347.7	347.3				499.3		0							495.5		0	249.3		0
Long-term Line of Credit														52.5	550.0
Senior Notes																0	142.0																			0	290.0		0	103.0
Other debt																															67.9	75.5
Total	2,461.3		2,880.4
Adjustment for debt with fair value hedges	0		93.1
Amortization of swap termination	100.0	46.1	41.7
Less current portion	(28.6)		(391.4)
Total long-term debt	$ 2,532.7		$ 2,623.8
Interest rate, stated percentage				6.25%			4.80%			4.625%			5.625%					2.60%		2.375%				5.75%			4.20%			6.50%				4.60%				4.03%			4.18%		5.00%			6.95%
Interest rate, stated percentage, minimum																															0.90%
Interest rate, stated percentage, maximum																															7.20%