Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Summary Of Financial Instruments) (Details)

v2.4.0.6
Financial Instruments (Summary Of Financial Instruments) (Details) (USD $)
In Millions, unless otherwise specified
Jan. 31, 2011
Sprint [Member]
 
Derivative Asset, unwound $ 1,134
AFS security delivered for physical settlement of derivative position 1,134
Century Link, Inc. [Member]
 
Derivative Asset, unwound 189
AFS security delivered for physical settlement of derivative position $ 189