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DEBT AND FINANCING ARRANGEMENTS DEBT AND FINANCING ARRANGEMENTS - Average Interest Rate (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Oct. 01, 2017
Debt Instrument [Line Items] |  |  |
Principal Value | $ 23,633,000,000 |  |
Senior notes | 1.125% senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, stated interest rate percentage | 1.125% |  | 5.50%
Principal Value | $ 375,000,000 |  |
Maturity |  | Jan. 01, 2017 |
Average Effective Percentage Rate | 0.00% | 1.51% |
Senior notes | 5.50% senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, stated interest rate percentage | 5.50% |  |
Principal Value | $ 750,000,000 |  |
Maturity | Jan. 01, 2018 |  |
Average Effective Percentage Rate | 3.63% | 3.45% |
Senior notes | 5.125% senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, stated interest rate percentage | 5.125% |  |
Principal Value | $ 1,000,000,000.0 |  |
Maturity | Jan. 01, 2019 |  |
Average Effective Percentage Rate | 3.99% | 2.98% |
Senior notes | 3.125% senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, stated interest rate percentage | 3.125% |  |
Principal Value | $ 1,500,000,000 |  |
Maturity | Jan. 01, 2021 |  |
Average Effective Percentage Rate | 2.32% | 1.34% |
Senior notes | 2.45% senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, stated interest rate percentage | 2.45% |  |
Principal Value | $ 1,000,000,000 |  |
Maturity | Oct. 01, 2022 |  |
Average Effective Percentage Rate | 2.77% | 1.78% |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 3: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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