INVESTMENTS AND RESTRICTED CASH

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INVESTMENTS AND RESTRICTED CASH	3 Months Ended
	Mar. 31, 2015
Marketable Securities [Abstract]
CASH AND INVESTMENTS	INVESTMENTS AND RESTRICTED CASH The following is a summary of marketable securities classified as trading and available-for-sale as of March 31, 2015 and December 31, 2014 (in millions):   Cost   Unrealized Gains   Unrealized Losses   Estimated Fair Value March 31, 2015               Current marketable securities:               U.S. government and agency debt securities $ 315   $ 1   $ —   $ 316 Mortgage and asset-backed debt securities 88   1   —   89 Corporate debt securities 1,016   2   —   1,018 Other debt, equity and investment securities 511   3   (2 )   512 Total marketable securities $ 1,930   $ 7   $ (2 )   $ 1,935                 December 31, 2014               Current marketable securities:               U.S. government and agency debt securities $ 321   $ 1   $ (1 )   $ 321 Mortgage and asset-backed debt securities 89   1   (1 )   89 Corporate debt securities 534   —   —   534 Other debt, equity and investment securities 48   —   —   48 Total marketable securities $ 992   $ 2   $ (2 )   $ 992 Of the total estimated fair value in marketable securities listed above, $1.370 billion and $430 million as of March 31, 2015 and December 31, 2014, respectively, have been classified as "trading", with unrealized gains and losses recognized in investment income within the statements of consolidated income. The remaining estimated fair value of marketable securities was classified as "available-for-sale", with related unrealized gains and losses, net of tax, recognized in accumulated other comprehensive income ("AOCI"). Investment Other-Than-Temporary Impairments We have concluded that no other-than-temporary impairment losses existed as of March 31, 2015. In making this determination, we considered the financial condition and prospects of the issuers, the magnitude of the losses compared with the investments’ cost, the length of time the investments have been in an unrealized loss position, the probability that we will be unable to collect all amounts due according to the contractual terms of the securities, the credit rating of the securities and our ability and intent to hold these investments until the anticipated recovery in market value occurs. Maturity Information The amortized cost and estimated fair value of marketable securities at March 31, 2015, by contractual maturity, are shown below (in millions). Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.   Cost   Estimated Fair Value Due in one year or less $ 1,267   $ 1,267 Due after one year through three years 422   423 Due after three years through five years 15   16 Due after five years 103   105   1,807   1,811 Equity and other investment securities 123   124   $ 1,930   $ 1,935 Non-Current Investments and Restricted Cash We had $442 million of restricted cash related to our self-insurance requirements as of March 31, 2015 and December 31, 2014, which is reported in “non-current investments and restricted cash” on the consolidated balance sheets. This restricted cash is invested in money market funds and similar cash equivalent type assets. At March 31, 2015 and December 31, 2014, we held a $19 million investment in a variable life insurance policy to fund benefits for the UPS Excess Coordinating Benefit Plan. Additionally, we held escrowed cash related to the acquisition and disposition of certain assets of $3 and $28 million as of March 31, 2015 and December 31, 2014, respectively. The amounts described above are classified as “non-current investments and restricted cash” on the consolidated balance sheets, while the quarterly change in investment fair value is recognized in "investment income" on the statements of consolidated income. Fair Value Measurements Marketable securities utilizing Level 1 inputs include active exchange-traded equity securities and equity index funds, and most U.S. Government debt securities, as these securities all have quoted prices in active markets. Marketable securities utilizing Level 2 inputs include asset-backed securities, corporate bonds and municipal bonds. These securities are valued using market corroborated pricing, matrix pricing or other models that utilize observable inputs such as yield curves. We maintain holdings in certain investment partnerships that are measured at fair value utilizing Level 3 inputs (classified as “other non-current investments” in the tables below and as “other non-current assets” in the consolidated balance sheets). These partnership holdings do not have quoted prices, nor can they be valued using inputs based on observable market data. These investments are valued internally using a discounted cash flow model with two significant inputs: (1) the after-tax cash flow projections for each partnership and (2) the risk-adjusted discount rate consistent with the duration of the expected cash flows for each partnership. The weighted-average discount rates used to value these investments were 7.63% and 7.81% as of March 31, 2015 and December 31, 2014, respectively. These inputs, and the resulting fair values, are updated on a quarterly basis. The following table presents information about our investments measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value (in millions):   Quoted Prices in Active Markets for Identical Assets (Level 1)   Significant Other Observable Inputs (Level 2)   Significant Unobservable Inputs (Level 3)   Balance  March 31, 2015               Marketable Securities:               U.S. government and agency debt securities $ 316   $ —   $ —   $ 316 Mortgage and asset-backed debt securities —   89   —   89 Corporate debt securities —   1,018   —   1,018 Other debt, equity and investment securities —   512   —   512 Total marketable securities 316   1,619   —   1,935 Other non-current investments 19   —   56   75 Total $ 335   $ 1,619   $ 56   $ 2,010 December 31, 2014               Marketable Securities:               U.S. government and agency debt securities $ 321   $ —   $ —   $ 321 Mortgage and asset-backed debt securities —   89   —   89 Corporate debt securities —   534   —   534 Other debt, equity and investment securities —   48   —   48 Total marketable securities 321   671   —   992 Other non-current investments 19   —   64   83 Total $ 340   $ 671   $ 64   $ 1,075 The following table presents the changes in the above Level 3 instruments measured on a recurring basis for the three months ended March 31, 2015 and 2014 (in millions):       Marketable Securities   Other Non-Current Investments   Total Balance on January 1, 2015 $ —   $ 64   $ 64 Transfers into (out of) Level 3 —   —   — Net realized and unrealized gains (losses):           Included in earnings (in investment income) —   (8 )   (8 ) Included in accumulated other comprehensive income (pre-tax) —   —   — Purchases —   —   — Sales —   —   — Balance on March 31, 2015 $ —   $ 56   $ 56                           Marketable Securities   Other Non-Current Investments   Total Balance on January 1, 2014 $ —   $ 110   $ 110 Transfers into (out of) Level 3 —   —   — Net realized and unrealized gains (losses):           Included in earnings (in investment income) —   (11 )   (11 ) Included in accumulated other comprehensive income (pre-tax) —   —   — Purchases —   —   — Sales —   —   — Balance on March 31, 2014 $ —   $ 99   $ 99 There were no transfers of investments between Level 1 and Level 2 during the three months ended March 31, 2015 and 2014.