DEBT - Senior Notes and Debt Redemption (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2017 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Jun. 30, 2020 |
Feb. 29, 2020 |
Mar. 31, 2019 |
Nov. 30, 2014 |
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| Debt Instrument | |||||||||
| Repayment of debt | $ 50,000,000 | $ 275,000,000 | |||||||
| Debt outstanding | $ 3,490,000,000 | $ 3,500,000,000 | |||||||
| Senior notes | |||||||||
| Debt Instrument | |||||||||
| Redemption price | 101.00% | ||||||||
| Fair value disclosure | $ 4,140,000,000 | $ 4,010,000,000.00 | |||||||
| Senior notes | 2020 Senior Notes | |||||||||
| Debt Instrument | |||||||||
| Debt face amount | $ 750,000,000.0 | ||||||||
| Senior notes | 2019 Senior Notes | |||||||||
| Debt Instrument | |||||||||
| Debt face amount | $ 1,200,000,000 | ||||||||
| Senior notes | 2014 Senior Notes | |||||||||
| Debt Instrument | |||||||||
| Debt face amount | $ 2,500,000,000 | ||||||||
| Repayment of debt | $ 500,000,000.0 | $ 250,000,000.0 | $ 250,000,000.0 | ||||||
| Debt outstanding | $ 1,500,000,000 | ||||||||
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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