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Medium- And Long-Term Debt (Narrative) (Details) (USD $)
0 Months Ended
Sep. 30, 2012
Jan. 07, 2012
3-Month LIBOR Plus 3.10% [Member]
Jun. 15, 2012
3-Month LIBOR Plus 1.60% [Member]
Extinguishment of Debt, Amount   $ 4,000,000 $ 26,000,000
Debt Instrument Original Maturity Date   July 7, 2033 June 15, 2037
Blanket lien, real-estate related loans $ 14,000,000,000