|MEDTRONIC PLC filed this Form 10-Q on 09/01/2017|
Notes to Consolidated Financial Statements
The following tables provide a reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis that used significant unobservable inputs (Level 3):
Activity related to the Company’s investment portfolio is as follows:
Credit losses represent the difference between the present value of cash flows expected to be collected on certain mortgage-backed securities and auction rate securities and the amortized cost of these securities. Based on the Company’s assessment of the credit quality of the underlying collateral and credit support available to each of the remaining securities in which the Company is invested, the Company believes it has recognized all necessary other-than-temporary impairments, as the Company does not have the intent to sell, nor is it more likely than not that the Company will be required to sell, before recovery of the amortized cost.
At July 28, 2017 and April 28, 2017, the credit loss portion of other-than-temporary impairments on debt securities was not significant. The total reductions of available-for-sale debt securities sold during the three months ended July 28, 2017 and July 29, 2016 were not significant.
The July 28, 2017 balance of available-for-sale debt securities, excluding debt funds which have no single maturity date, by contractual maturity is shown in the following table. Within the table, maturities of mortgage-backed securities have been allocated based upon timing of estimated cash flows assuming no change in the current interest rate environment. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.