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Short And Long-Term Debt Issuance and Partial Redemption of Convertible Debt (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jun. 26, 2025	Sep. 30, 2025		Sep. 30, 2025		Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 2,599		$ 2,599
Repayments of Convertible Debt				361		$ 0
Percentage of Exchangeable Senior Notes repurchased							8600.00%
9.75% Senior Secured Second Lien Notes | Secured Debt
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 500	[1]	$ 500	[1]			$ 0
Interest Rate		9.75%		9.75%
0.25% Exchangeable Senior Notes | Convertible Debt
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 36	[1]	$ 36	[1]			$ 403
Interest Rate		0.25%		0.25%
Debt Instrument, Repaid, Principal	$ 345	$ 22
Repayments of Convertible Debt	$ 339	$ 22
Proportional amount of the exchangeable note hedge terminated							$ 58
Proportional amount of exchangeable note warrants terminated							$ 40
[1] See below under the header "Issuance of 9.75% Senior Secured Second Lien Notes due 2030 and Partial Repurchases of Exchangeable Senior Notes" for additional information related to the debt transactions during the second and third quarters of 2025.

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