...A. Note: Will be discussing consolidated results using core performance measures. 1. Unless Co. specifically indicates, comments relate to GAAP data. a. 2. Core performance measures are non-GAAP measures used by management to analyze the business. 3. For 4Q21, largest difference between GAAP and core results stem from non-cash, mark-to-market gains associated with Co.'s currency hedging contracts and non-cash impairment charges. B. Mark-to-Market Adjustments: GAAP accounting requires earnings translation hedge contracts and foreign debt settling in future periods to be mark-to-market, and recorded at current value at end of each qtr., even though those contracts will not be settled in current qtr. 1. For GLW, this increased GAAP earnings in 4Q21 by $86m. a. b. This mark-to-market accounting has no impact on cash flow. 2. Currency hedges protects Co. economically from FX rate fluctuations and provides higher certainty for earnings and cash flow, its ability to invest for growth and future...