Share-Based Awards (Details - Options) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary Of Option Activity [Abstract]
Weighted average grant date fair value of options granted		$ 7.90	$ 7.43
Total intrinsic value of options exercised	$ 24.8	$ 8.8	$ 4.6
Proceeds from options exercised	49.6	29.3	10.6
Weighted average remaining contractual term	5 years 1 month 0 days
Aggregate intrinsic value of options outstanding, exercisable, vested and expected to vest	$ 22.4
Activity related to share options
Outstanding at January 1, 2013	1,457,853
Granted	0	120,210	123,162
Exercised	(819,764)	(518,548)	(194,201)
Forfeited or expired	(1,810)
Outstanding at December 31, 2013	636,279	1,457,853
Options exercisable at December 31, 2013	569,301
Options vested and expected to vest at December 31, 2013	633,748
The weighted average exercise price is as follows:
Outstanding at January 1, 2013	$ 65.66
Exercised	$ 61.97
Forfeited or expired	$ 108
Outstanding at December 31, 2013	$ 70.28	$ 65.66
Exercisable at December 31, 2013	$ 70.23
Options vested and expected to vest at December 31, 2013	$ 70.28