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Debt Debt - June 2020 Offering (Details) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 02, 2020 | Jun. 29, 2020 | Jun. 22, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Net proceeds from sales of senior notes |  |  |  |  |  |  | $ 2,376,000,000 | $ 0
Loss on early extinguishment of debt |  |  |  |  | $ 17,040,000 | $ 0 | $ 17,040,000 | $ 0
Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Net proceeds from sales of senior notes |  |  | $ 2,376,000,000 |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  | $ 17,040,000 |  |  |
Senior Notes | Senior Notes 5.25 Percent Due 2030 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount |  |  | 1,300,000,000 |  |  |  |  |
Senior Notes | Senior Notes 5 Percent due 2028 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount |  |  | 500,000,000 |  |  |  |  |
Senior Notes | Senior Notes 5.625 Percent Due 2032 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount |  |  | $ 600,000,000 |  |  |  |  |
Redempttion price percentage |  |  | 100.00% |  |  |  |  |
Senior Notes | Senior Notes 4.375 Percent due 2021 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt redeemed |  | $ 500,000,000 |  |  |  |  |  |
Redempttion price percentage |  | 100.00% |  |  |  |  |  |
Senior Notes | Senior Notes 6% percent due 2023 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt redeemed |  | $ 600,000,000 |  |  |  |  |  |
Redempttion price percentage |  | 102.00% |  |  |  |  |  |
Subsequent Event | Senior Notes | Senior Notes 5.75 Percent Due [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Redempttion price percentage | 100.958% |  |  |  |  |  |  |
Forecast | Senior Notes | Senior Notes 5.75 Percent Due [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  | $ 15,300,000 |  |  |  |

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