Short-term Borrowings and Long-term Debt Short-term Borrowing and Long-term Debt (Narratives) (Details) (USD $) In Millions, unless otherwise specified	Aug. 03, 2014	Dec. 31, 2013	Jul. 28, 2013
Debt Disclosure [Abstract]
Short-term Debt, Weighted Average Interest Rate	0.27%		0.19%
Short-term borrowings	$ 1,771		$ 1,909
Commercial Paper	1,406		1,162
Letters of Credit Outstanding, Amount	49
Prior Line of Credit Facility Maximum Borrowing Capacity		2,000
Line of Credit Facility, Maximum Borrowing Capacity	2,200
Line of Credit Facility Utilized Borrowing Capacity	3
Line of Credit Facility, Additional Borrowing Capacity	500
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	301
Long-term Debt, Maturities, Repayments of Principal in Year Two	1
Long-term Debt, Maturities, Repayments of Principal in Year Three	401
Long-term Debt, Maturities, Repayments of Principal in Year Four	1
Long-term Debt, Maturities, Repayments of Principal in Year Five	300
Long-term Debt, Maturities, Repayments of Principal after Year Five	$ 1,550