OTHER LIABILITIES, INCLUDING EMPLOYEE BENEFITS (Penion Plans) (Details) $ in Millions		3 Months Ended	12 Months Ended
	Jul. 31, 2020	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Rp / $	Dec. 31, 2019 USD ($) Rp / $	Dec. 31, 2018 USD ($)
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation			$ 2,722	$ 2,576	$ 2,230
Discount rate			2.50%	3.40%	4.40%
Expected return on plan assets			5.25%
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)			$ (308)	$ (328)
Service cost			37	42	$ 44
Interest cost			77	95	84
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)			(1)	(1)
Defined Benefit Plan, Benefit Obligation, Benefits Paid			123	120
Total pension plan net assets			1,946	1,677	1,433
Actual return on plan assets			272	289
Employer contributions			119	74
Foreign exchange gains (losses)			1	1
Defined Benefit Plan, Plan Assets, Benefits Paid			123	120
Defined Benefit Plan, Funded (Unfunded) Status of Plan			(776)	(899)
Accumulated benefit obligation			$ 2,719	$ 2,414
Rate of compensation increase			0.00%	3.25%
Other assets			$ 7	$ 8
Accounts payable and accrued liabilities			4	4
Liability, Defined Benefit Plan, Noncurrent			779	903
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position			(776)	(899)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment			$ (4)	$ 0	$ 0
Discount rate			2.98%	4.40%	3.70%
Expected return on plan assets			6.25%	6.50%	6.50%
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment			$ 154	$ 0
Domestic Plan [Member] | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets			40.00%
Domestic Plan [Member] | Fixed Income Investments
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets			52.00%
Domestic Plan [Member] | Alternative Investments
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets			8.00%
SERP
Defined Benefit Plan Disclosure [Line Items]
Years of service required for annuity to equal percentage of executive's highest average compensation for any consecutive three-year period during the preceeding five years before retirement			25 years
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation			$ 238	$ 217	$ 220
Discount rate			6.25%	7.25%	8.25%
Expected return on plan assets			7.75%
Foreign currency exchange rate | Rp / $			14,034	13,832
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)			$ (12)	$ 27
Service cost			11	12	$ 13
Interest cost			14	17	14
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)			2	(8)
Defined Benefit Plan, Benefit Obligation, Benefits Paid			14	13
Total pension plan net assets			251	254	$ 238
Actual return on plan assets			13	19
Employer contributions			2	0
Foreign exchange gains (losses)			(4)	10
Defined Benefit Plan, Plan Assets, Benefits Paid			14	13
Defined Benefit Plan, Funded (Unfunded) Status of Plan			13	37
Accumulated benefit obligation			$ 194	$ 175
Rate of compensation increase			4.00%	4.00%
Other assets			$ 13	$ 37
Accounts payable and accrued liabilities			0	0
Liability, Defined Benefit Plan, Noncurrent			0	0
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position			$ 13	$ 37
Discount rate			7.25%	8.25%	6.75%
Expected return on plan assets			7.75%	8.25%	6.75%
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment			$ 0	$ 0
Postretirement Medical and Life Insurance Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate			2.21%	3.00%
Rate of compensation increase	325.00%
Accounts payable and accrued liabilities			$ 7	$ 13
Liability, Defined Benefit Plan, Noncurrent			$ 69	$ 112
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment		$ 4
Discount rate	240.00%		3.00%	4.20%	3.50%
Expected return on plan assets	625.00%
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		184
Defined Benefit Plan, Plan Assets, (Increase) Decrease for Curtailment		$ 103