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FINANCING ARRANGEMENTS - Senior Unsecured Notes (Details) - USD ($) |  |  |  |  |  | 1 Months Ended | 7 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 10, 2022 | Dec. 03, 2020 | May 26, 2020 | Dec. 30, 2019 | May 23, 2019 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2022 | Jan. 18, 2022 | Mar. 31, 2019 | Mar. 08, 2019 | Jun. 30, 2018 | Mar. 26, 2018 | Dec. 18, 2017 | Mar. 31, 2017 | Mar. 27, 2015
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage due to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  |  | $ 1,710,000,000 | $ 7,846,000,000 | $ 3,440,000,000 |  |  |  |  |  |  |  |  |
Term Loan B Facility Due June 2025 and November 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment, outstanding debt |  |  | $ 303,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage due to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  | $ 8,000,000 | $ 927,000,000 | $ 8,000,000 | $ 927,000,000 |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | 7,000,000 | $ 550,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | $ 5,594,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 9.00% Senior Unsecured Notes Due December 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 370,000,000 |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  | 9.00% |  |
Debt covenant, redemption and discharge condition, amount, if circumstances met |  |  |  |  |  |  |  |  |  |  |  | $ 7,000,000,000 |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |
Senior Unsecured Notes | 9.00% Senior Unsecured Notes Due December 2025 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  | $ 4,000,000 |  | $ 4,000,000 |  |  | 541,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 6.125% Senior Notes Due April 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 6.125% |  | 6.125% |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) | 101.021% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 6.125% Senior Unsecured Notes due April 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.125%
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,250,000,000
Senior Unsecured Notes | 9.25% Senior Unsecured Notes Due April 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.25% |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |
Senior Unsecured Notes | 9.25% Senior Unsecured Notes Due April 2026 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  | $ 4,000,000 |  | $ 4,000,000 |  |  | 752,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 8.50% Senior Unsecured Notes Due January 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 8.50% | 8.50% | 8.50% |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000 |  | $ 750,000,000 |  |  |  |
Senior Unsecured Notes | 8.50% Senior Unsecured Notes Due January 2027 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 1,099,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 7.00% Senior Unsecured Notes Due 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 7.00% Senior Unsecured Notes Due 2028 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 540,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 7.25% Senior Unsecured Notes Due 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  | 7.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 7.25% Senior Unsecured Notes Due 2029 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 373,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.00% Senior Unsecured Notes Due January 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.00% Senior Unsecured Notes Due January 2028 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 710,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.25% Senior Unsecured Notes Due January 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.25% Senior Unsecured Notes Due January 2030 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 332,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 6.25% Senior Notes Due February 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  | 6.25% |  |  | 6.25% |  | 6.25% |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 6.25% Senior Notes Due February 2029 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 540,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 6.25% Senior Notes Due February 2029 | Debt Instrument, Redemption, Period One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.00% Senior Notes Due February 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  | 5.00% |  |  |  | 5.00% |  | 5.00% |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.00% Senior Notes Due February 2029 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 371,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.25% Senior Notes Due February 2031 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  | 5.25% |  |  |  | 5.25% |  | 5.25% |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage (as a percent) |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Notes | 5.25% Senior Notes Due February 2031 | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 336,000,000 |  |  |  |  |  |  |  |
Senior Secured Notes | Exchange Offer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  | $ 3,125,000,000 |  |  |  |  |  |  |  |
Senior Secured Notes | 6.50% Senior Notes Due March 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased aggregate principal amount |  |  | $ 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.50% |

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