NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Finance lease obligations 2	$ 862
Unamortized debt discount and issuance costs	(289)	$ (297)
Long-term debt due within one year 3	(355)	(231)
Long-Term Debt	14,108	14,280
Long Term Debt, Accumulated Fair Value Adjustment	47	$ 47
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	207
Long-Term Debt, Maturity, Year One	391
Long-term Debt, Maturities, Repayments of Principal in Year Two	81
Long-term Debt, Maturities, Repayments of Principal in Year Three	386
Long-term Debt, Maturities, Repayments of Principal in Year Four	829
Long-term Debt, Maturities, Repayments of Principal in Year Five	1,161
InterNotes redeemed [Member]
Debt Instrument [Line Items]
Notes Issued	$ 16
Loans Payable [Member] \| Promissory Notes and Debentures, Final Maturity, Current Year [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	8.64%	8.64%
Long-term Debt, Gross	$ 121	$ 121
Loans Payable [Member] \| Promissory Notes and Debentures, Final Maturity, Year One [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	7.63%	7.63%
Long-term Debt, Gross	$ 250	$ 250
Loans Payable [Member] \| Promissory Notes and Debentures, Final Maturity, Year Three [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	5.63%	5.63%
Long-term Debt, Gross	$ 333	$ 333
Loans Payable [Member] \| Promissory Notes and Debentures, Final Maturity, Year Four [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.63%	3.63%
Long-term Debt, Gross	$ 750	$ 750
Loans Payable [Member] \| Promissory Notes and Debentures, Final Maturity, Year Six and Thereafter [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	5.15%	5.15%
Long-term Debt, Gross	$ 9,363	$ 9,363
Loans Payable [Member] \| Foreign Currency Loans [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	1.17%	1.17%
Long-term Debt, Gross	$ 2,667	$ 2,730
Medium-term Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.36%	3.37%
Long-term Debt, Gross	$ 406	$ 392
Finance Leases [Member]
Debt Instrument [Line Items]
Finance lease obligations 2	$ 862	$ 869

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Present value of lessee's discounted obligation for lease payments from finance lease.

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