Identifying Line items on Derivatives - Income Statement

What does "reclassified from AOCI to net income" mean?

What does trend does the "derivatives not designated as financial instruments" indicate?

2015 2016 2017 Cash flow hedges (a) Reclassified from AOCI to net income (239) S 537 $ 456 Fair value hedges Interest rate contracts Net interest settlements and accruals excluded from the assessment of hedge 367 4 effectiveness 370 217 Derivatives not designated as hedging instruments 257 Foreign currency exchange contracts Cross-cumrency interest rate swap contracts Interest rate contracts Commodity contracts 425 100 (58) (64) 537 S 103 58 74 245 398 1,561 $ (a) For 2015, 2016, and 2017, a $123 million gain, a $770 million gain, and a $134 million gain, respectively, were recorded in Other comprehensive income floss), net of tax. (b) For 2015, 2016, and 2017, hedge ineffectiveness reflects the net change in fair value on derivatives of $72 million gain, $120 million loss, and $268 million loss, respectively, and a change in value on hedged debt attributable to the change in benchmark interest rates of $69 million loss, $124 million gain, and $267 million gain, respectively