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DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 3 (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Sales | $ 2,409 | $ 2,241 |
Cost of sales | 1,811 | 1,664 |
Net interest expense | 50 | 52 |
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 30 |  | $ (11)
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract] |  |  |
Change in cumulative translation adjustment, before tax | 2 | 19 |
Summary of Derivative Instruments [Abstract] |  |  |
Monetized positions and mark to market in accumulated other comprehensive income before tax | 129 |  | 270
Price Risk Cash Flow Hedge Unrealized Gain to be Reclassified During Next 12 Months | (17) |  |
Commodity Contract [Member] | Cash Flow Hedging [Member] |  |  |
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 1 | (9) |
Commodity Contract [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member] |  |  |
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | 0 | (1) |
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] |  |  |
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 23 | 13 |
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Sales [Member] |  |  |
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | (5) | 6 |
Interest Rate Swap [Member] | Cash Flow Hedging [Member] |  |  |
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | 7 | 1 |
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Net Interest Expense |  |  |
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | (2) | (2) |
Interest Rate Contract [Member] | Fair Value Hedging [Member] |  |  |
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract] |  |  |
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | (4) |  | $ (5)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | 0 | 0 |
Interest Rate Contract [Member] | Fair Value Hedging [Member] | Net Interest Expense |  |  |
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract] |  |  |
Gain (Loss) on Fair Value Hedges Recognized in Earnings | 0 | 0 |
Foreign Exchange [Member] | Net Investment Hedging [Member] |  |  |
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract] |  |  |
Change in cumulative translation adjustment, before tax | 69 | 33 |
Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | 5 | 7 |
Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member] |  |  |
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract] |  |  |
Change in cumulative translation adjustment, before tax | 42 | 18 |
AOCI, Derivative Qualifying as Hedge, Excluded Component | $ (11) | $ 41 |

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