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FINANCIAL INSTRUMENTS AND DERIVATIVES - DERIVATIVE INSTRUMENTS - GAIN (LOSS) RECORDED IN AOCI IN THE CONSOLIDATED BALANCE SHEETS (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Apr. 07, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Effective Portion Reclassified from AOCI into Income (Expense) | $ 48 |  |  |
Designated as Hedging Instrument | Cross currency basis swaps |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | $ (3) |  |
Designated as Hedging Instrument | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (18) | $ (17) | $ 5
Effective Portion Reclassified from AOCI into Income (Expense) |  | (2) | (1) | (11)
Ineffective Portion Recognized in Income (Expense) |  | 4 | 2 | 1
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 | 0
Designated as Hedging Instrument | Cash Flow Hedges | Interest rate swaps | Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (16) | (11) | 0
Effective Portion Reclassified from AOCI into Income (Expense) |  | (4) | (2) | (2)
Ineffective Portion Recognized in Income (Expense) |  | 0 |  | 0
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 | 0
Designated as Hedging Instrument | Cash Flow Hedges | Interest rate swaps | Other expense (income), net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Effective Portion Reclassified from AOCI into Income (Expense) |  |  |  | 0
Ineffective Portion Recognized in Income (Expense) |  |  |  | 1
Derivative, Gain (Loss) on Derivative, Net |  |  |  | 0
Designated as Hedging Instrument | Cash Flow Hedges | Foreign exchange forward contracts | Cost of products sold |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (2) | (6) | 5
Effective Portion Reclassified from AOCI into Income (Expense) |  | 2 | 1 | (9)
Ineffective Portion Recognized in Income (Expense) |  | 4 | 2 | 0
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 | 0
Designated as Hedging Instrument | Hedges of Net Investments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (20) | 18 | 36
Effective Portion Reclassified from AOCI into Income (Expense) |  | 0 | 0 | (3)
Ineffective Portion Recognized in Income (Expense) |  | 6 | 22 | 16
Derivative, Gain (Loss) on Derivative, Net |  | 9 | 8 | 7
Designated as Hedging Instrument | Hedges of Net Investments | Cross currency basis swaps | Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (26) | 9 | 15
Effective Portion Reclassified from AOCI into Income (Expense) |  | 0 | 0 | 0
Ineffective Portion Recognized in Income (Expense) |  | 0 | 0 | 0
Derivative, Gain (Loss) on Derivative, Net |  | 9 | 8 | 7
Designated as Hedging Instrument | Hedges of Net Investments | Cross currency basis swaps | Other expense (income), net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Effective Portion Reclassified from AOCI into Income (Expense) |  |  |  | (3)
Ineffective Portion Recognized in Income (Expense) |  |  |  | 0
Derivative, Gain (Loss) on Derivative, Net |  |  |  | 0
Designated as Hedging Instrument | Hedges of Net Investments | Foreign exchange forward contracts | Other expense (income), net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | 6 | 9 | 21
Effective Portion Reclassified from AOCI into Income (Expense) |  | 0 | 0 | 0
Ineffective Portion Recognized in Income (Expense) |  | 6 | 22 | 16
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 | 0
Designated as Hedging Instrument | Fair Value Hedges |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (3) | 3 |
Effective Portion Reclassified from AOCI into Income (Expense) |  | 0 | 0 |
Ineffective Portion Recognized in Income (Expense) |  | 3 | 3 |
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 |
Designated as Hedging Instrument | Fair Value Hedges | Foreign exchange forward contracts | Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (Loss) in AOCI |  | (3) | 3 |
Effective Portion Reclassified from AOCI into Income (Expense) |  | 0 | 0 |
Ineffective Portion Recognized in Income (Expense) |  | 3 | 3 |
Derivative, Gain (Loss) on Derivative, Net |  | 0 | 0 |
Not Designated as Hedging Instrument |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, Gain (Loss) on Derivative, Net |  | 7 | (3) | (6)
Not Designated as Hedging Instrument | Foreign exchange forward contracts | Other expense (income), net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative, Gain (Loss) on Derivative, Net |  | $ 7 | $ (3) | $ (6)

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