Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Aug. 04, 2014
Declaration of Dividends [Member]
Subsequent Event [Line Items]
Declared date	Jul. 30, 2014
Declaration of Dividends [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Common stock dividends declared per share	$ 0.17
Record date	Aug. 14, 2014
Payment date	Aug. 29, 2014
Declaration of Dividends [Member] | Series K Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock dividends declared per share	$ 0.406250
Record date	Aug. 14, 2014
Payment date	Aug. 29, 2014
Declaration of Dividends [Member] | Series L Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock dividends declared per share	$ 0.412500
Record date	Aug. 14, 2014
Payment date	Aug. 29, 2014
Subsequent Event [Member] | Cumulative Preferred Stock [Member]
Subsequent Event [Line Items]
Stock Redeemed or Called During Period, Shares	384,530
Preferred Stock, Dividend Rate, Percentage	6.625%
Preferred Stock, Redemption Date	Aug. 04, 2014
Payments for Repurchase of Redeemable Preferred Stock		$ 96.1
Preferred Stock, Redemption Price Per Share		$ 250.00