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v3.20.2

Debt - Narrative (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 29, 2020 USD ($) derivative | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | May 31, 2020 USD ($) | Jan. 31, 2020 USD ($) | Jan. 23, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Loss on extinguishment of debt | $ 44,000,000 | $ 0 | $ 0 | $ 44,000,000 | $ 0 |  |  |
Number of Interest rate swap contracts terminated | derivative | 3 |  |  |  |  |  |  |
Proceeds from termination of interest rate swaps | $ 9,000,000 |  |  |  |  |  |  |
WellCare Health Plans, Inc. |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Acquisition of WellCare Notes |  |  |  |  |  |  |  | $ 2,055,000,000
Interest Rate Swap |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Derivative notional amount | 1,000,000,000 |  |  |  |  |  |  |
Interest Rate Contracts- Swap |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Derivative notional amount | 2,100,000,000 |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount | 2,100,000,000 |  |  |  |  |  |  |
Senior Notes | $1,200 Million Senior Notes Due April 2025 | WellCare Health Plans, Inc. |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  |  |  |  |  |  | $ 1,200,000,000 |
Interest rate |  |  |  |  |  |  | 5.25% |
Senior Notes | $750 million 5.375% Senior Notes due August 15, 2026 | WellCare Health Plans, Inc. |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  | $ 750,000 |  | $ 750,000 |  |  | $ 750,000,000 |
Interest rate |  | 5.375% |  | 5.375% |  |  | 5.375% |
Senior Notes | $1,146 Million 5.25% Senior Notes Due 2025 | WellCare Health Plans, Inc. |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  |  |  |  |  |  | $ 1,146,000,000 |
Interest rate |  |  |  |  |  |  | 5.25% |
Senior Notes | 5.375% Senior Notes Due 2026 | WellCare Health Plans, Inc. |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  |  |  |  |  |  | $ 747,000,000 |
Interest rate |  |  |  |  |  |  | 5.375% |
Senior Notes | 3.375% Senior Notes Due 2030 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount | $ 2,000,000,000 | $ 2,000,000 |  | $ 2,000,000 |  | $ 2,000,000,000 |  |
Interest rate | 3.375% | 3.375% |  | 3.375% |  | 3.375% |  |
Senior Notes | $1,000 million 6.125% Senior Notes, due February 15, 2024 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount | $ 1,000,000,000 | $ 1,000,000,000 |  | $ 1,000,000,000 |  |  |  |
Interest rate | 6.125% | 6.125% |  | 6.125% |  |  |  |
Senior Notes | $1,000 million 4.75% Senior Notes, due May 15, 2022 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  | $ 1,000,000,000 |  | $ 1,000,000,000 |  |  |  |
Interest rate |  | 4.75% |  | 4.75% |  |  | 4.75% |
Debt redemption amount |  |  |  |  |  |  | $ 1,000,000,000 |
Senior Notes | $1,000 million 4.75% Senior Notes due January 15, 2025 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  |  |  |  |  | $ 1,000,000,000 |  |
Interest rate |  |  |  |  |  | 4.75% |  |
Senior Notes | $2,500 million 4.25% Senior Notes due December 15, 2027 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  | $ 2,500,000 |  | $ 2,500,000 |  | $ 2,500,000,000 |  |
Interest rate |  | 4.25% |  | 4.25% |  | 4.25% |  |
Senior Notes | $3,500 million 4.625% Senior Notes due December 15, 2029 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount |  | $ 3,500,000 |  | $ 3,500,000 |  | $ 3,500,000,000 |  |
Interest rate |  | 4.625% |  | 4.625% |  | 4.625% |  |
Senior Notes | $2,200 million 4.75% Senior Notes, due January 15, 2025 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt, face amount | $ 2,200,000,000 | $ 2,200,000,000 |  | $ 2,200,000,000 |  |  |  |
Interest rate | 4.75% | 4.75% |  | 4.75% |  |  |  |

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