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Valuation of Debt and Equity Investments and Certain Liabilities | 12 Months Ended
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Dec. 31, 2016
Fair Value Disclosures [Abstract] |
Valuation of debt and equity investments and certain liabilities | 8. Valuation of debt and equity investments and certain liabilities Debt and equity investments We classify our investments as available for sale, trading, equity method or cost method. Most of our investments are classified as available for sale. Available-for-sale and trading securities are stated at fair value, which is generally based on market prices or broker quotes. See the fair-value discussion below. Unrealized gains and losses on available-for-sale securities are recorded as an increase or decrease, net of taxes, in AOCI on our Consolidated Balance Sheets. We record other-than-temporary impairments on available-for-sale securities in OI&E in our Consolidated Statements of Income. We classify certain mutual funds as trading securities. These mutual funds hold a variety of debt and equity investments intended to generate returns that offset changes in certain deferred compensation liabilities. We record changes in the fair value of these mutual funds and the related deferred compensation liabilities in SG&A. Our other investments are not measured at fair value but are accounted for using either the equity method or cost method. These investments consist of interests in venture capital funds and other non-marketable equity securities. Gains and losses from equity-method investments are reflected in OI&E based on our ownership share of the investee’s financial results. Gains and losses on cost-method investments are recorded in OI&E when realized or when an impairment of the investment’s value is warranted based on our assessment of the recoverability of each investment. Details of our investments are as follows:
| December 31, 2016 |  |  | December 31, 2015 |
| Cash and Cash |  |  | Short-Term |  |  | Long-Term |  |  | Cash and Cash |  |  | Short-Term |  |  | Long-Term |
| Equivalents |  |  | Investments |  |  | Investments |  |  | Equivalents |  |  | Investments |  |  | Investments |
Measured at fair value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds | $ |  | 346 |  |  | $ |  | — |  |  | $ |  | — |  |  | $ |  | 395 |  |  | $ |  | — |  |  | $ |  | — |
Corporate obligations |  |  | 107 |  |  |  |  | 544 |  |  |  |  | — |  |  |  |  | 132 |  |  |  |  | 285 |  |  |  |  | — |
U.S. government agency and Treasury securities |  |  | 490 |  |  |  |  | 1,792 |  |  |  |  | — |  |  |  |  | 245 |  |  |  |  | 1,933 |  |  |  |  | — |
Trading securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  |  | — |  |  |  |  | — |  |  |  |  | 201 |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 187 |
Total |  |  | 943 |  |  |  |  | 2,336 |  |  |  |  | 201 |  |  |  |  | 772 |  |  |  |  | 2,218 |  |  |  |  | 187 |
Other measurement basis: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity-method investments |  |  | — |  |  |  |  | — |  |  |  |  | 25 |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 25 |
Cost-method investments |  |  | — |  |  |  |  | — |  |  |  |  | 9 |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 9 |
Cash on hand |  |  | 211 |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 228 |  |  |  |  | — |  |  |  |  | — |
Total | $ |  | 1,154 |  |  | $ |  | 2,336 |  |  | $ |  | 235 |  |  | $ |  | 1,000 |  |  | $ |  | 2,218 |  |  | $ |  | 221 |
As of December 31, 2016 and 2015, unrealized gains and losses associated with our available-for-sale investments were not material. We did not recognize any credit losses related to available-for-sale investments in 2016, 2015 and 2014. In 2016, 2015 and 2014, the proceeds from sales, redemptions and maturities of short-term available-for-sale investments were $3.39 billion, $2.89 billion and $2.97 billion, respectively. Gross realized gains and losses from these sales were not material. The following table presents the aggregate maturities of investments in debt securities classified as available for sale as of December 31, 2016:
Due |  | Fair Value |
One year or less |  | $ |  | 3,254 |
One to two years |  |  |  | 25 |
Other-than-temporary declines and impairments in the values of these investments recognized in OI&E were not material in 2016, 2015 and 2014. Fair-value considerations We measure and report certain financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The three-level hierarchy discussed below indicates the extent and level of judgment used to estimate fair-value measurements.
| • | Level 1 – Uses unadjusted quoted prices that are available in active markets for identical assets or liabilities as of the reporting date.
| • | Level 2 – Uses inputs other than Level 1 that are either directly or indirectly observable as of the reporting date through correlation with market data, including quoted prices for similar assets and liabilities in active markets and quoted prices in markets that are not active. Level 2 also includes assets and liabilities that are valued using models or other pricing methodologies that do not require significant judgment since the input assumptions used in the models, such as interest rates and volatility factors, are corroborated by readily observable data. We utilize a third-party data service to provide Level 2 valuations. We verify these valuations for reasonableness relative to unadjusted quotes obtained from brokers or dealers based on observable prices for similar assets in active markets.
| • | Level 3 – Uses inputs that are unobservable, supported by little or no market activity and reflect the use of significant management judgment. These values are generally determined using pricing models that utilize management estimates of market participant assumptions. As of December 31, 2016 and 2015, we had no Level 3 assets or liabilities, other than certain assets held by our postretirement plans.
The following are our assets and liabilities that were accounted for at fair value on a recurring basis. These tables do not include cash on hand, assets held by our postretirement plans, or assets and liabilities that are measured at historical cost or any basis other than fair value.
| December 31, 2016 |  |  | December 31, 2015 |
| Level 1 |  |  | Level 2 |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds | $ |  | 346 |  |  | $ |  | — |  |  | $ |  | 346 |  |  | $ |  | 395 |  |  | $ |  | — |  |  | $ |  | 395 |
Corporate obligations |  |  | — |  |  |  |  | 651 |  |  |  |  | 651 |  |  |  |  | — |  |  |  |  | 417 |  |  |  |  | 417 |
U.S. government agency and Treasury securities |  |  | 2,042 |  |  |  |  | 240 |  |  |  |  | 2,282 |  |  |  |  | 1,828 |  |  |  |  | 350 |  |  |  |  | 2,178 |
Mutual funds |  |  | 201 |  |  |  |  | — |  |  |  |  | 201 |  |  |  |  | 187 |  |  |  |  | — |  |  |  |  | 187 |
Total assets | $ |  | 2,589 |  |  | $ |  | 891 |  |  | $ |  | 3,480 |  |  | $ |  | 2,410 |  |  | $ |  | 767 |  |  | $ |  | 3,177 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred compensation | $ |  | 218 |  |  | $ |  | — |  |  | $ |  | 218 |  |  | $ |  | 198 |  |  | $ |  | — |  |  | $ |  | 198 |
Total liabilities | $ |  | 218 |  |  | $ |  | — |  |  | $ |  | 218 |  |  | $ |  | 198 |  |  | $ |  | — |  |  | $ |  | 198 |

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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