NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES Notes Payable (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Short-term Debt	$ 1,490	$ 586
Period-end average interest rates	3.78%	6.30%
Commercial Paper [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 250	$ 151
Notes Payable to Banks [Member]
Short-term Debt [Line Items]
Short-term Debt	1,240	$ 435
Notes Payable to Banks [Member] | Uncommitted Credit Facility [Member]
Short-term Debt [Line Items]
Short-term Debt	$ 800