INCOME TAXES - Tax Losses and Carryforward (Details) $ in Millions	Mar. 31, 2021 USD ($)
Tax losses and other carryforwards
Tax losses and other carryforwards	$ 1,753
2022 - 2027
Tax losses and other carryforwards
Tax losses and other carryforwards	577
2028 - 2033
Tax losses and other carryforwards
Tax losses and other carryforwards	437
2034 and post
Tax losses and other carryforwards
Tax losses and other carryforwards	126
Indefinite
Tax losses and other carryforwards
Tax losses and other carryforwards	$ 613