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NOTES PAYABLE AND DEBT - Narrative (Details) |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 18, 2021 USD ($) | Feb. 19, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 EUR (€) | Jun. 04, 2021 | May 19, 2021 EUR (€) | Oct. 01, 2020 USD ($) | Jun. 19, 2020 USD ($) | Mar. 13, 2020 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Short-term, weighted average interest rate on borrowings outstanding |  |  | 1.00% | 1.70% |  | 1.00% |  |  |  |  |
Debt, weighted average interest rate |  |  | 2.50% | 2.80% |  | 2.50% |  |  |  |  |
Loss on debt extinguishment |  |  | $ (20,000,000) | $ 0 | $ 0 |  |  |  |  |  |
Maximum line of credit potential additional increase |  |  | 2,000,000,000 |  |  |  |  |  |  |  |
Estimated fair value of senior unsecured notes |  |  | 4,421,000,000 | 4,052,000,000 |  |  |  |  |  |  |
Debt, difference between fair value and carrying value |  |  | 212,000,000 | 332,000,000 |  |  |  |  |  |  |
Outstanding letters of credit |  |  | 35,000,000 | 33,000,000 |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument face value |  |  |  |  |  |  |  |  | $ 800,000,000 | $ 1,100,000,000 |
Short-term borrowings |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Short-term borrowings |  |  | 62,000,000 | 45,000,000 |  |  |  |  |  |  |
1.800% Senior notes due 11/07/22 (€500 million par value) | Senior Notes |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument face value | € |  |  |  |  |  |  |  | € 500,000,000 |  |  |
Debt instrument stated interest rate |  |  |  |  |  |  |  | 1.80% |  |  |
Loss on debt extinguishment | $ 20,000,000 |  |  |  |  |  |  |  |  |  |
1.000% Senior notes due 05/19/31 (€1,000 million par value) | Senior Notes |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument face value | € |  |  |  |  |  | € 1,000,000,000 |  |  |  |  |
Debt instrument stated interest rate |  |  |  |  |  |  | 1.00% |  |  |  |
Delay Draw Term Loan | Term Loan |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument face value |  | $ 900,000,000 |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 364 days |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Multi-currency revolving credit agreement, maximum borrowing capacity |  |  |  |  |  |  |  |  | $ 2,000,000,000 |  |
Maximum line of credit potential additional increase |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000
Long-term line of credit |  |  | 0 | 0 |  |  |  |  |  |  |
Commercial Paper |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Multi-currency revolving credit agreement, current borrowing capacity |  |  | 2,000,000,000 |  |  |  |  |  |  |  |
Short-term, Unsecured Commercial Paper Notes |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term line of credit |  |  | $ 0 | $ 0 |  |  |  |  |  |  |

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