|
Notes Payable and Long-Term Debt (Details) (USD $)
|
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|---|
|
Jun. 30, 2012
Fixed rate debt
|
Jul. 28, 2012
Fixed rate debt
|
Jul. 28, 2012
Commercial paper.
|
Jul. 30, 2011
Commercial paper.
|
Jul. 28, 2012
Commercial paper.
|
Jul. 30, 2011
Commercial paper.
|
|
| Short-term financing | ||||||
| Maximum daily amount outstanding during the period | $ 620,000,000 | $ 850,000,000 | $ 620,000,000 | $ 850,000,000 | ||
| Average daily amount outstanding during the period | 240,000,000 | 329,000,000 | 201,000,000 | 164,000,000 | ||
| Weighted average interest rate (as a percent) | 0.21% | 0.12% | 0.16% | 0.12% | ||
| Notes Payable and Long-Term Debt | ||||||
| Debt, amount issued | $ 1,500,000,000 | |||||
| Debt, fixed interest rate (as a percent) | 4.00% | |||||