Notes Payable and Long-Term Debt (Details) (USD $)	1 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended				1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Nov. 01, 2014	Nov. 02, 2013	Jun. 30, 2014 Debt Repurchase 2	May 04, 2013 Unsecured	Nov. 02, 2013 Unsecured	Aug. 03, 2013 Unsecured	Jun. 30, 2014 Unsecured Unsecured Debt, Maturing June 2019	Jun. 30, 2014 Unsecured Unsecured Debt, Maturing July 2024	Mar. 31, 2013 Secured	Nov. 01, 2014 Commercial paper	Nov. 02, 2013 Commercial paper	Nov. 01, 2014 Commercial paper	Nov. 02, 2013 Commercial paper
Debt Instrument Line Items
Maximum daily amount outstanding during the period											$ 386,000,000	$ 1,173,000,000	$ 590,000,000	$ 1,465,000,000
Average daily amount outstanding during the period											51,000,000	528,000,000	160,000,000	439,000,000
Amount outstanding at period-end											386,000,000	1,077,000,000	386,000,000	1,077,000,000
Weighted average interest rate											0.12%	0.13%	0.11%	0.14%
Face amount of unsecured debt								1,000,000,000	1,000,000,000
Stated interest rate								2.30%	3.50%
Repurchase of additional debt	725,000,000						970,000,000
Repurchase amount				1,000,000,000
Loss on repurchase of debt instrument	285,000,000
Debt amount repaid										1,500,000,000
Cash proceeds from the sale to repurchase additional debt					1,400,000,000
Loss on early retirement		$ 285,000,000	$ 445,000,000			$ 445,000,000