|
Financing Activities (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Nov. 01, 2014
|
Nov. 01, 2014
5.75% Senior Notes due 2014 [Member]
|
Nov. 02, 2013
5.75% Senior Notes due 2014 [Member]
|
Nov. 01, 2014
7.625% Senior Debentures [Member]
|
Nov. 02, 2013
7.625% Senior Debentures [Member]
|
Nov. 02, 2013
4.375% Senior notes due 2023 [Member]
|
Nov. 01, 2014
3.625% senior notes due 2024[Member]
|
Jan. 31, 2015
Subsequent Event [Member]
|
Jan. 31, 2015
Subsequent Event [Member]
7.875% Senior Notes Due 2015 [Member]
|
Jan. 31, 2015
Subsequent Event [Member]
4.5% senior notes due 2034[Member]
|
Nov. 18, 2014
Subsequent Event [Member]
4.5% senior notes due 2034[Member]
|
Jan. 31, 2015
Minimum [Member]
Subsequent Event [Member]
|
Jan. 31, 2015
Maximum [Member]
Subsequent Event [Member]
|
|
| Extinguishment of debt | $ 453 | $ 0 | $ 0 | $ 109 | $ 407 | ||||||||
| Stock Repurchased During Period, Shares | 25.3 | ||||||||||||
| Stock Repurchased During Period, Value | 1,483 | ||||||||||||
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | 1,449 | ||||||||||||
| Debt Instrument, Face Amount | 400 | 500 | 550 | ||||||||||
| Debt Instrument, Interest Rate, Stated Percentage | 5.75% | 4.375% | 3.625% | 7.875% | 4.50% | ||||||||
| Gains (Losses) on Extinguishment of Debt | $ 16 | $ 18 | |||||||||||