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Note 2. Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Minimum ownership percentage for consolidation | 50.00% |  |  |
Restricted Cash and Cash Equivalents | $ 8 | $ 10 |  |
Advertising Expense | 194 | 188 | $ 174 |
Goodwill | 3,618 | $ 3,477 | $ 3,335 | $ 3,304
Indefinite-Lived Intangible Assets (Excluding Goodwill) | $ 756 |  |  |
Percentage by which the estimated fair value of each reporting unit is lowered during goodwill evaluation | 10.00% | 10.00% | 10.00% |
Maximum [Member] |  |  |  |
Remaining maturity of highly-liquid investments | 3 months |  |  |

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- Definition The percentage by which the estimated fair value of each reporting unit is lowered to evaluate the impact on goodwill. + References No definition available. + Details
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