zimmer biomet holdings , inc . 2015 form 10-k annual report notes to consolidated financial statements ( continued ) interest to the date of redemption . in addition , the merger notes and the 3.375% ( 3.375 % ) senior notes due 2021 may be redeemed at our option without any make-whole premium at specified dates ranging from one month to six months in advance of the scheduled maturity date . between the closing date and june 30 , 2015 , we repaid the biomet senior notes we assumed in the merger . the fair value of the principal amount plus interest was $ 2798.6 million . these senior notes required us to pay a call premium in excess of the fair value of the notes when they were repaid . as a result , we recognized $ 22.0 million in non-operating other expense related to this call premium . the estimated fair value of our senior notes as of december 31 , 2015 , based on quoted prices for the specific securities from transactions in over-the-counter markets ( level 2 ) , was $ 8837.5 million . the estimated fair value of the japan term loan as of december 31 , 2015 , based upon publicly available market yield curves and the terms of the debt ( level 2 ) , was $ 96.4 million . the carrying value of the u.s . term loan approximates fair value as it bears interest at short-term variable market rates . we have entered into interest rate swap agreements which we designated as fair value hedges of underlying fixed- rate obligations on our senior notes due 2019 and 2021 . see note 14 for additional information regarding the interest rate swap agreements . we also have available uncommitted credit facilities totaling $ 35.8 million . at december 31 , 2015 and 2014 , the weighted average interest rate for our long-term borrowings was 2.9 percent and 3.5 percent , respectively . we paid $ 207.1 million , $ 67.5 million and $ 68.1 million in interest during 2015 , 2014 and 2013 , respectively . 13 . accumulated other comprehensive ( loss ) income oci refers to certain gains and losses that under gaap are included in comprehensive income but are excluded from net earnings as these amounts are initially recorded as an adjustment to stockholders 2019 equity . amounts in oci may be reclassified to net earnings upon the occurrence of certain events . our oci is comprised of foreign currency translation adjustments , unrealized gains and losses on cash flow hedges , unrealized gains and losses on available-for-sale securities , and amortization of prior service costs and unrecognized gains and losses in actuarial assumptions on our defined benefit plans . foreign currency translation adjustments are reclassified to net earnings upon sale or upon a complete or substantially complete liquidation of an investment in a foreign entity . unrealized gains and losses on cash flow hedges are reclassified to net earnings when the hedged item affects net earnings . unrealized gains and losses on available-for-sale securities are reclassified to net earnings if we sell the security before maturity or if the unrealized loss is considered to be other-than-temporary . amounts related to defined benefit plans that are in oci are reclassified over the service periods of employees in the plan . the reclassification amounts are allocated to all employees in the plans and , therefore , the reclassified amounts may become part of inventory to the extent they are considered direct labor costs . see note 15 for more information on our defined benefit plans . the following table shows the changes in the components of oci , net of tax ( in millions ) : foreign currency translation hedges unrealized gains on securities defined benefit .
what was total oci at december 31 , 2015 in millions?
.