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Organization and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Advertising Expense | $ 600 | $ 618 | $ 601
Capitalized Computer Software, Net | 129 | 141 |
Increase (Decrease) in Accrued Liabilities, Operating Activities | (818) | 305 | 3,342
Other, Financing Activities | $ (330) | (276) | (151)
Building and Building Improvements [Member] | Minimum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 20 years |  |
Building and Building Improvements [Member] | Maximum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 35 years |  |
Machinery and Equipment [Member] | Minimum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 4 years |  |
Machinery and Equipment [Member] | Maximum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |
Computer Equipment [Member] | Minimum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |
Computer Equipment [Member] | Maximum [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 7 years |  |
Accounting Standards Update 2015-17 [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Assets, Current |  | 857 |
Long-term Deferred Tax Assets |  | 857 |
Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Tax Provision Related to Excess Tax Benefit | $ 91 |  |
Excess Tax Benefit from Share-based Compensation, Operating Activities |  | 194 | 585
Excess Tax Benefit from Share-based Compensation, Financing Activities |  | (194) | (585)
Accounting Standards Update 2016-09, Withholding Taxes on Shares Withheld [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Increase (Decrease) in Accrued Liabilities, Operating Activities |  | 184 | 336
Other, Financing Activities |  | $ (184) | $ (336)
Accounting Standards Update 2016-01, Financial Instruments [Member] |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Expected Reclassification from AOCI to Retained Earnings Upon Adoption | $ 278 |  |

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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
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