| **Description Of Business And Summary Of Significant Accounting Policies (Advertising Costs) (Details) - USD ($) $ in Millions** | 12 Months Ended |
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| **Operating Expenses [Abstract]**                                                                                                |            |   |   |
| Vendor reimbursements of advertising costs                                                                                       | $ 51            | $ 43 | $ 66 |
| Advertising expense, net of vendor reimbursements                                                                                | $ 240           | $ 228 | $ 217 |

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| - Definition
Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848
+ Details**Name:**us-gaap_AdvertisingExpense**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
Total amount received by an entity from a vendor under a cooperative advertising arrangement that has been offset against advertising expense.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 50 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51666513&loc=d3e63872-111659Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cooperative Advertising -URI http://asc.fasb.org/extlink&oid=51574790
+ Details**Name:**us-gaap_CooperativeAdvertisingAmount**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
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| - References
No definition available.
+ Details**Name:**us-gaap_OperatingExpensesAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |