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Accounts Receivable (Activity In The Allowance For Credit Losses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 02, 2015	May 03, 2014
Accounts Receivable, Net [Abstract]
Allowance at beginning of period	$ 75	$ 80
Bad debt expense	10us-gaap_ProvisionForDoubtfulAccounts	15us-gaap_ProvisionForDoubtfulAccounts
Write-offs	(19)	(19)
Recoveries	4	4
Allowance at end of period	$ 70	$ 80

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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