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Basis Of Presentation Financial Instruments - Fair Value Indebtedness Table (Details) - USD ($)
$ in Millions

Sep. 30, 2023

Aug. 24, 2023

Dec. 31, 2022

Jan. 27, 2021

Long-term debt principal amount

$ 2,587

Secured Debt | Extended Term Loan A

Long-term debt principal amount

211

^[1],[2]

$ 222

$ 237

Long-term debt fair value

^[3]

210

216

Secured Debt | 7.00% Senior Secured Second Lien Notes

Long-term debt principal amount

640

$ 640

0

Long-term debt fair value

^[3]

578

0

Senior Notes | 5.75% Senior Notes

Long-term debt principal amount

576

^[4]

900

Long-term debt fair value

^[3]

415

680

Senior Notes | 5.25% Senior Notes

Long-term debt principal amount

457

^[4]

1,000

Long-term debt fair value

^[3]

318

729

Convertible Debt | 0.25% Exchangeable Senior Notes

Long-term debt principal amount

403

403

Long-term debt fair value

^[3]

307

280

Line of Credit | Revolving Credit Facility

Line of credit facility outstanding

300

^[5],[6],[7]

350

Line of credit facility fair value

^[3]

$ 300

$ 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 September 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 September 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 below under the headers "Debt Exchange Transactions" and "7.00% Senior Secured Second Lien Notes" for additional information with respect to the debt exchange transactions, as well as, under the header "Open Market Repurchases of 5.75% and 5.25% Senior Notes" for additional information with respect to open market repurchases in the third quarter of 2023.
[5]	As of September 30, 2023, the Company had $1,100 million of borrowing capacity under its Revolving Credit Facility. As of September 30, 2023, there were $300 million of outstanding borrowings under the Revolving Credit Facility and $34 million of outstanding undrawn letters of credit. On October 23, 2023, the Company had $325 million of outstanding borrowings under the Revolving Credit Facility and $34 million of outstanding undrawn letters of credit.
[6]	Interest rates with respect to revolving loans under the Revolving Credit Facility at September 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 September 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.

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Paragraph 4
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X

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

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