Shareholders' Equity (Dividends Declared) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	Nov. 01, 2013	Jul. 30, 2013	May 07, 2013	Jan. 17, 2013	Oct. 31, 2012	Aug. 07, 2012
Dividends Payable [Line Items]
Distribution Per Share	$ 0.55	$ 0.5	$ 0.5	$ 0.5	$ 0.20	$ 0.20
Aggregate Payment Amount	$ 39.6	$ 36.1	$ 35.8	$ 35.7	$ 12.3	$ 12.3
Qualified
Dividends Payable [Line Items]
Distribution Per Share	$ 171	$ 155	$ 155	$ 155
Non-Qualified
Dividends Payable [Line Items]
Distribution Per Share	$ 379	$ 345	$ 345	$ 345