Dividends
For a summary of quarterly cash dividends declared per share on our Class A and Class B Common Stock during the six months ended December 31, 2019, see Notes to Consolidated Financial Statements, Note 14 — Equity.
Pension and Post-retirement Plan Funding
There have been no significant changes to our pension and post-retirement funding as discussed in our Annual Report on Form 10-K for the fiscal year ended June 30, 2019.
Commitments, Contractual Obligations and Contingencies
There have been no significant changes to our commitments and contractual obligations as discussed in our Annual Report on Form 10-K for the fiscal year ended June 30, 2019. For a discussion of contingencies, see Notes to Consolidated Financial Statements, Note 11 — Contingencies.
Derivative Financial Instruments and Hedging Activities
For a discussion of our derivative financial instruments and hedging activities, see Notes to Consolidated Financial Statements, Note 7 — Derivative Financial Instruments.
Foreign Exchange Risk Management
For a discussion of foreign exchange risk management, see Notes to Consolidated Financial Statements, Note 7 — Derivative Financial Instruments (Cash Flow Hedges, Net Investment Hedges).
Credit Risk
For a discussion of credit risk, see Notes to Consolidated Financial Statements, Note 7 — Derivative Financial Instruments (Credit Risk).
Market Risk
We address certain financial exposures through a controlled program of market risk management that includes the use of foreign currency forward contracts to reduce the effects of fluctuating foreign currency exchange rates and to mitigate the change in fair value of specific assets and liabilities on the balance sheet. To perform a sensitivity analysis of our foreign currency forward contracts, we assess the change in fair values from the impact of hypothetical changes in foreign currency exchange rates. A hypothetical 10% strengthening of the U.S. dollar against the foreign exchange rates for the currencies in our portfolio would have resulted in a net increase (decrease) in the fair value of our portfolio of approximately $(238) million and $48 million as of December 31, 2019 and June 30, 2019, respectively. This potential change does not consider our underlying foreign currency exposures.
In addition, we enter into interest rate derivatives to manage the effects of interest rate movements on our aggregate liability portfolio, including future debt issuances. Based on a hypothetical 100 basis point increase in interest rates, the estimated fair value of our interest rate derivatives would decrease by approximately $12 million and $16 million as of December 31, 2019 and June 30, 2019, respectively.
Our sensitivity analysis represents an estimate of reasonably possible net losses that would be recognized on our portfolio of derivative financial instruments assuming hypothetical movements in future market rates and is not necessarily indicative of actual results, which may or may not occur. It does not represent the maximum possible loss or any expected loss that may occur, since actual future gains and losses will differ from those estimated, based upon actual fluctuations in market rates, operating exposures, and the timing thereof, and changes in our portfolio of derivative financial instruments during the year. We believe, however, that any such loss incurred would be offset by the effects of market rate movements on the respective underlying transactions for which the derivative financial instrument was intended.
OFF-BALANCE SHEET ARRANGEMENTS
We do not maintain any off-balance sheet arrangements, transactions, obligations or other relationships with unconsolidated entities that would be expected to have a material current or future effect upon our financial condition or results of operations.