Indebtedness and Leases (Schedule Of Maturities Of Long-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 735
Long-term Debt, Maturities, Repayments of Principal in Year Two	1,494
Long-term Debt, Maturities, Repayments of Principal in Year Three	814
Long-term Debt, Maturities, Repayments of Principal in Year Four	1,788
Long-term Debt, Maturities, Repayments of Principal in Year Five	529
Long-term Debt, Maturities, Repayments of Principal Total	5,360
Principal Not Subject To Compromise [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	568
Long-term Debt, Maturities, Repayments of Principal in Year Two	887
Long-term Debt, Maturities, Repayments of Principal in Year Three	814
Long-term Debt, Maturities, Repayments of Principal in Year Four	1,727
Long-term Debt, Maturities, Repayments of Principal in Year Five	529
Long-term Debt, Maturities, Repayments of Principal Total	4,525
Principal Subject To Compromise [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	167
Long-term Debt, Maturities, Repayments of Principal in Year Two	607
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	61
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Long-term Debt, Maturities, Repayments of Principal Total	$ 835