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Basis Of Presentation Financial Instruments - Fair Value Indebtedness Table (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022 | Jan. 27, 2021
--- | --- | --- | ---
Long-term debt principal amount |  | $ 2,868 |  |  |
Secured Debt | Extended Term Loan A |  |  |  |  |
Long-term debt principal amount |  | 215 | [1],[2] | $ 222 | $ 237
Long-term debt fair value | [3] | 213 |  | 216 |
Senior Notes | 5.75% Senior Notes |  |  |  |  |
Long-term debt principal amount |  | 900 | [4] | 900 |
Long-term debt fair value | [3] | 675 |  | 680 |
Senior Notes | 5.25% Senior Notes |  |  |  |  |
Long-term debt principal amount |  | 1,000 | [4] | 1,000 |
Long-term debt fair value | [3] | 710 |  | 729 |
Convertible Debt | 0.25% Exchangeable Senior Notes |  |  |  |  |
Long-term debt principal amount |  | 403 |  | 403 |
Long-term debt fair value | [3] | 297 |  | 280 |
Line of Credit | Revolving Credit Facility |  |  |  |  |
Line of credit facility outstanding |  | 350 | [5],[6],[7] | 350 |
Line of credit facility fair value | [3] | $ 350 |  | $ 350 |
[1] | In May 2023, the Company entered into an amendment to the Term Loan Agreement which replaced London Interbank Offering Rate ("LIBOR") with a Term SOFR-based rate as the applicable benchmark for the Term Loan A Facility (the applicable margin for the Term Loan A Facility remained the same, but the term SOFR-based rate includes a 10 basis points credit spread adjustment). Interest rates with respect to outstanding borrowings under the Extended Term Loan A at June 30, 2023 are based on, at the Company's option, (a) a term SOFR-based rate including a 10 basis point credit spread adjustment or (b) ABR plus (in each case) an additional margin subject to adjustment based on the then current senior secured leverage ratio. Based on the previous quarter's senior secured leverage ratio, the SOFR margin was 1.75% and the ABR margin was 0.75% for the three months ended June 30, 2023.
[2] | The Extended Term Loan A has quarterly amortization payments equal to a percentage per quarter of the original principal amount of $237 million, as follows: 0.625% per quarter from June 30, 2021 to March 31, 2022; 1.25% per quarter from June 30, 2022 to March 31, 2023; 1.875% per quarter from June 30, 2023 to March 31, 2024; and 2.50% per quarter for periods ending on or after June 30, 2024, with the balance of the Extended Term Loan A due at maturity on February 8, 2025.
[3] | The fair value of the Company's indebtedness is categorized as Level II.
[4] | See Note 11, "Subsequent Events" for additional information with respect to the debt exchange transactions.
[5] | As of June 30, 2023, the Company had $1,100 million of borrowing capacity under its Revolving Credit Facility. As of June 30, 2023, there were $350 million of outstanding borrowings under the Revolving Credit Facility and $36 million of outstanding undrawn letters of credit. On July 24, 2023, the Company had $310 million of outstanding borrowings under the Revolving Credit Facility and $36 million of outstanding undrawn letters of credit.
[6] | Interest rates with respect to revolving loans under the Revolving Credit Facility at June 30, 2023 are based on, at the Company's option, (a) a term Secured Overnight Financing Rate ("SOFR")-based rate including a 10 basis point credit spread adjustment or (b) JP Morgan Chase Bank, N.A.'s prime rate ("ABR") plus (in each case) an additional margin subject to adjustment based on the then current senior secured leverage ratio. Based on the previous quarter's senior secured leverage ratio, the SOFR margin was 1.75% and the ABR margin was 0.75% for the three months ended June 30, 2023.
[7] | The maturity date of the Revolving Credit Facility may spring forward to a date prior to July 2027 as follows: (i) if on or before March 16, 2026, the 0.25% Exchangeable Senior Notes have not been extended, refinanced or replaced to have a maturity date after October 26, 2027 (or are not otherwise discharged, defeased or repaid by March 16, 2026), the maturity date of the Revolving Credit Facility will be March 16, 2026; and (ii) if on or before November 9, 2024, the "term A loans" under the Term Loan A Agreement have not been extended, refinanced or replaced to have a maturity date after October 26, 2027 (or are not otherwise repaid by November 9, 2024), the maturity date of the Revolving Credit Facility will be November 9, 2024.

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