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SHAREOWNERS' EQUITY - Gains (Losses) Reclassified from AOCI (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, after tax | $ 26 | $ 36
Foreign currency translation gain (loss) |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | (3) | 0
Reclassification from accumulated other comprehensive income, tax | 0 | 0
Reclassification from accumulated other comprehensive income, after tax | (3) | 0
Unrealized gain (loss) on marketable securities |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | (3) | 0
Reclassification from accumulated other comprehensive income, tax | 1 | 0
Reclassification from accumulated other comprehensive income, after tax | (2) | 0
Unrealized gain (loss) on cash flow hedges |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, tax | (16) | (9)
Reclassification from accumulated other comprehensive income, after tax | 51 | 29
Unrealized gain (loss) on cash flow hedges | Interest rate contracts |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | (1) | (3)
Unrealized gain (loss) on cash flow hedges | Foreign currency exchange contracts | Revenue |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | 68 | 41
Prior service costs |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | (27) | (23)
Curtailment of benefit obligation |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, before tax | 0 | 33
Unrecognized pension and postretirement benefit costs |  |
AmountsReclassifiedFromAOCI [Line Items] |  |
Reclassification from accumulated other comprehensive income, tax | 7 | (3)
Reclassification from accumulated other comprehensive income, after tax | $ (20) | $ 7

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