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DEBT - Narrative (Details) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 31, 2018 USD ($) | Mar. 31, 2019 USD ($) extension | Dec. 31, 2017 USD ($) | Aug. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |
Line of credit facility, potential maximum borrowing capacity |  | $ 1,600,000,000.0 |  |
Letters of credit outstanding, amount |  | 800,000 |  |
Commercial paper notes |  | $ 900,000,000.0 |  |
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, term |  | 1 year |  |
Commercial paper, maturity period range |  | 397 days |  |
Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility borrowing capacity |  | $ 800,000,000 |  |
Debt instrument, term |  | 3 years |  |
Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility borrowing capacity |  | $ 1,100,000,000.0 |  | $ 900,000,000
Debt instrument, term |  | 5 years |  |
Line of credit, maximum number of extensions | extension |  | 2 |  |
Line of credit facility, expiration date, extension period |  | 1 year |  |
Outstanding borrowings |  | $ 0 |  |
Line of credit facility, available for borrowing |  | 1,000,000,000 |  |
Commercial paper |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Outstanding borrowings |  | $ 65,000,000 |  |
Notes, 3.60%, due Aug 2021 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 300,000,000 |  |  |
Debt, interest rate | 3.60% | 3.60% |  |
Notes, 3.95%, due May 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 400,000,000 |  |  |
Debt, interest rate | 3.95% | 3.95% |  |
Notes, Floating Rate, due Aug 2021 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 300,000,000 |  |  |
Notes, Floating Rate, due Aug 2021 | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread on variable rate | 0.87% |  |  |
Commercial paper |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt |  | $ 65,000,000 |  |
Receivables Securitization Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility borrowing capacity |  |  | $ 225,000,000.0 |
Debt instrument, term |  |  | 2 years |
Outstanding borrowings |  | 25,000,000 |  |
Collateral amount |  | $ 220,900,000 |  |

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- Definition Amount of assets pledged to secure a debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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