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v3.21.1

FINANCING ARRANGEMENTS - Senior Unsecured Notes (Details) |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Dec. 03, 2020 USD ($) | May 26, 2020 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Dec. 03, 2020 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  | 101.00% |  |
Loss on extinguishment of debt |  | $ 27,000,000 | $ 5,000,000 | $ 24,000,000 |
Term Loan B Facility Due June 2025 And November 2025 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt amortization prepayment |  | $ 303,000,000 |  |  |
Unsecured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  | 101.00% |  |
Unsecured Debt | 6.25% Senior Notes Due February 2029 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) |  | 6.25% | 6.25% |  |
Principal amount |  | $ 1,500,000,000 |  |  |
Unsecured Debt | 6.25% Senior Notes Due February 2029 | Debt Instrument, Redemption, Period One |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Redemption price, percentage |  | 100.00% |  |  |
Unsecured Debt | 6.25% Senior Notes Due February 2029 | Debt Instrument, Redemption, Period Two | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum percentage of principal amount that can be redeemed |  | 40.00% |  |  |
Unsecured Debt | 5.00% Senior Notes Due February 2029 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) | 5.00% |  | 5.00% |  | 5.00%
Principal amount | $ 1,000,000,000 |  |  |  |
Redemption price, percentage | 100.00% |  |  |  |
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings | 40.00% |  |  |  |
Unsecured Debt | 5.25% Senior Notes Due February 2031 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) | 5.25% |  | 5.25% |  | 5.25%
Principal amount | $ 1,000,000,000 |  |  |  |
Redemption price, percentage | 100.00% |  |  |  |
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings | 40.00% |  |  |  |
Unsecured Debt | 4.50% Senior Unsecured Notes euro-denominated debt Due May 2023 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) | 4.50% |  |  |  | 4.50%
Repurchased principal amount | € |  |  |  |  | € 1,500,000,000
Unsecured Debt | 5.50% Senior Notes Due March 2023 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) | 5.50% |  |  |  | 5.50%
Repurchased principal amount | $ 233,000,000 |  |  |  |
Loss on extinguishment of debt | $ 7,000,000 |  |  |  |
Senior Secured Notes | 6.50% Senior Notes Due March 2022 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  | 6.50% |  |
Repurchased principal amount |  | $ 1,250,000,000 |  |  |

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