NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES Committed and Available Credit Facilities (Details) - Jun. 30, 2020 € in Millions, $ in Millions	USD ($)	EUR (€)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 8,673
Line of Credit Facility, Remaining Borrowing Capacity	7,423
Secured Debt [Member] | European Securitization Facility, Due October 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	448	€ 400
Line of Credit Facility, Remaining Borrowing Capacity	448
Revolving Credit Facility [Member] | Five Year Competitive Advance and Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	5,000
Line of Credit Facility, Remaining Borrowing Capacity	5,000
Revolving Credit Facility [Member] | Term Loan Facility, Due September 2023 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,250
Line of Credit Facility, Remaining Borrowing Capacity	0
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due July 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	100
Line of Credit Facility, Remaining Borrowing Capacity	100
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due August 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	300
Line of Credit Facility, Remaining Borrowing Capacity	300
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due December 2020 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	300
Line of Credit Facility, Remaining Borrowing Capacity	300
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due December 2021 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	150
Line of Credit Facility, Remaining Borrowing Capacity	150
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due March 2022 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	100
Line of Credit Facility, Remaining Borrowing Capacity	100
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due October 2024, Facility One [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	100
Line of Credit Facility, Remaining Borrowing Capacity	100
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due October 2024, Facility Two [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	100
Line of Credit Facility, Remaining Borrowing Capacity	100
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due November 2024 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	200
Line of Credit Facility, Remaining Borrowing Capacity	200
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due March 2025, Facility One [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	100
Line of Credit Facility, Remaining Borrowing Capacity	100
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due March 2025, Facility Two [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	250
Line of Credit Facility, Remaining Borrowing Capacity	250
Revolving Credit Facility [Member] | Bilateral Revolving Credit Facility, Due March 2025, Facility Three [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	275
Line of Credit Facility, Remaining Borrowing Capacity	$ 275