10. Accumulated Other Comprehensive Income

Accumulated other comprehensive income (loss) (“AOCI”) 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’ equity. Amounts in AOCI may be reclassified to net earnings upon the occurrence of certain events.

Our AOCI is comprised of foreign currency translation adjustments, unrealized gains and losses on cash flow hedges and unrecognized prior service costs and gains and losses in actuarial assumptions related to 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. In the three-month period ended March 31, 2022, due to the spinoff of ZimVie, certain foreign entities were completely liquidated. In a pro rata spinoff of consolidated subsidiaries’ assets and liabilities, the distribution of these net assets is recognized through equity instead of net earnings. Therefore, the foreign currency translation adjustments of those entities that were completely liquidated were reclassified to retained earnings. Similarly, we had entered into instruments designated as net investment hedges against certain of these same foreign entities. We reclassified the portion of the net investment hedge gains (losses) deferred in foreign currency translation adjustments related to those entities to retained earnings. Unrealized gains and losses on cash flow hedges are reclassified to net earnings when the hedged item affects net earnings. Amounts related to defined benefit plans that are in AOCI are reclassified over the service periods of employees in the plan.