Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Estimated Pension Plan Benefit Payments) (Details)

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Retirement Plans (Estimated Pension Plan Benefit Payments) (Details) (Pension Plan [Member], USD $)
In Millions, unless otherwise specified
Jan. 28, 2012
Pension Plan [Member]
 
2012 $ 251
2013 244
2014 244
2015 245
2016 254
2017-2021 $ 1,292