FINANCIAL INSTRUMENTS - Foreign currency derivative contract (Details) € in Millions, ₩ in Millions, zł in Millions, $ in Millions, $ in Millions, $ in Millions	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 PLN (zł)	Dec. 31, 2020 MXN ($)	Dec. 31, 2020 SGD ($)	Dec. 31, 2020 KRW (₩)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 PLN (zł)	Dec. 31, 2019 MXN ($)	Dec. 31, 2019 SGD ($)	Dec. 31, 2019 KRW (₩)
British pound | Foreign currency | Maturity Period December 2022
Derivative [Line Items]
Derivative, notional amount | €	€ 97						€ 9
Chinese renminbi | Foreign currency | Maturity Period December 2022
Derivative [Line Items]
Derivative, notional amount		$ 113						$ 2
Euro Member Countries, Euro | Foreign currency | Maturity Period December 2022
Derivative [Line Items]
Derivative, notional amount | zł			zł 147						zł 0
Euro Member Countries, Euro | Foreign currency | Maturity Period December 2021
Derivative [Line Items]
Derivative, notional amount		41						18
South Korea | Foreign currency | Maturity Period December 2021
Derivative [Line Items]
Derivative, notional amount	2	19					13	4
U.S. dollar
Derivative [Line Items]
Derivative, notional amount		$ 10						$ 10
U.S. dollar | Foreign currency | Maturity Period December 2022
Derivative [Line Items]
Derivative, notional amount	€ 55			$ 1,178	$ 47		€ 14			$ 0	$ 0
U.S. dollar | Foreign currency | Maturity Period April 2021
Derivative [Line Items]
Derivative, notional amount | ₩						₩ 15,000						₩ 0