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DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 1 (Details) € in Millions, ¥ in Millions, MMBTU in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2024 USD ($) MMBTU | Mar. 31, 2024 EUR (€) | Mar. 31, 2023 USD ($) | Jun. 30, 2023 EUR (€) | Dec. 31, 2023 USD ($) MMBTU | Mar. 31, 2024 EUR (€) MMBTU | Mar. 31, 2024 JPY (¥) MMBTU | Dec. 31, 2023 EUR (€) MMBTU | Dec. 31, 2023 JPY (¥) MMBTU | Dec. 31, 2022 USD ($)
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Unrealized Gains (Losses) on Derivative Instruments | $ (29) |  |  |  | $ (32) |  |  |  |  | $ (6)
Unrealized gain (loss) during period | $ 5 |  | $ (9) |  |  |  |  |  |  |
Foreign Exchange Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  | € 393 |  | € 405 |  |
Energy Related Derivative [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount | MMBTU | 6 |  |  |  | 11 | 6 | 6 | 11 | 11 |
Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ 75 |  |  |  | $ 75 |  |  |  |  |
1.50% Notes Due 2023 and 1.875% Notes Due 2026 [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amount of Nonderivative Instruments | 538 | € 498 |  | € 498 | $ 550 |  |  |  |  |
Notes Due January 2024 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Settled in Period | € |  | 165 |  |  |  |  |  |  |  |
Notes Due January 2024 [Member] | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Settled in Period | 190 |  |  |  |  |  |  |  |  |
Derivatives used in Net Investment Hedge, Increase (Decrease), Gross of Tax | 9 |  |  |  |  |  |  |  |  |
4.5% Notes Due Dec 2028 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | € |  | 46 |  |  |  |  |  |  |  |
4.5% Notes Due Dec 2028 [Member] | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | 50 |  |  |  |  |  |  |  |  |
5.75% Notes Due March 2033 | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | € |  | 184 |  |  |  |  |  |  |  |
5.75% Notes Due March 2033 | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | 200 |  |  |  |  |  |  |  |  |
5.625% Notes Due February 2034 | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | € |  | € 230 |  |  |  |  |  |  |  |
5.625% Notes Due February 2034 | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative Notional Amount, Entered in Period | $ 250 |  |  |  |  |  |  |  |  |
Debt with Various Maturities | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  | € 1,648 |  | € 1,354 |  |
Debt with Various Maturities | Cross Currency Interest Rate Contract [Member] | Japan, Yen | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | ¥ |  |  |  |  |  |  | ¥ 7,385 |  | ¥ 7,385 |

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