Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-3

Debt and Other Financing - Narrative (Details) shares in Millions				1 Months Ended	3 Months Ended		6 Months Ended
	May 14, 2026 USD ($) shares	Mar. 04, 2026 USD ($)	Feb. 06, 2026 USD ($) shares	Apr. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) day	Jun. 30, 2025 USD ($)	May 18, 2026 USD ($)	Dec. 31, 2025 USD ($)
Debt Instrument
Long-term debt					$ 2,836,000,000		$ 2,836,000,000			$ 3,272,000,000
Aggregate principal amount					2,900,000,000		2,900,000,000
Gain (loss) on debt extinguishment					59,000,000	$ (6,000,000)	102,000,000	$ (31,000,000)
Payment for debt extinguishment							245,000,000	742,000,000
Revolving Credit Facility
Debt Instrument
Long-term debt					0		0			0
Line of credit					0		$ 0
Convertible Debt
Debt Instrument
Trading days (whether or not consecutively) \| day							20
Trading days (consecutive) \| day							30
Percentage of conversion stock price (in percent)							130.00%
During number of business day period (in days)							5 days
Consecutive trading day period (after any)							10 days
Principal amount of notes							$ 1,000
Measurement period percentage (less than) (in percent)							98.00%
Redemption price, percentage of principal amount to be redeemed (in percent)							100.00%
Interest expense					47,000,000	41,000,000	$ 95,000,000	73,000,000
Debt Discount Amortization					3,000,000	2,000,000	4,000,000	5,000,000
Convertible Debt \| 2027 Notes
Debt Instrument
Converted value exceeded the principal value							104,000,000
2026 Notes \| Convertible Debt
Debt Instrument
Long-term debt					$ 39,000,000		$ 39,000,000			39,000,000
Interest rate, stated percentage (in percent)					1.00%		1.00%
Aggregate principal amount					$ 39,000,000		$ 39,000,000			39,000,000
Effective interest rate, percentage (in percent)					1.20%		1.20%
Repurchase of aggregate principal amount						$ 696,000,000		$ 696,000,000
Debt, fair value					$ 38,000,000		$ 38,000,000
Converted value exceeded the principal value							0
2027 Notes \| Convertible Debt
Debt Instrument
Long-term debt					$ 227,000,000		$ 227,000,000			477,000,000
Interest rate, stated percentage (in percent)					3.25%		3.25%
Aggregate principal amount					$ 229,000,000		$ 229,000,000			480,000,000
Effective interest rate, percentage (in percent)					3.60%		3.60%
Repurchase of aggregate principal amount			$ 250,000,000
Payment for debt extinguishment			$ 250,000,000
Settlement of convertible senior notes (in shares) \| shares			0.9
Debt, fair value					$ 349,000,000		$ 349,000,000
2029 Secured Notes \| Senior Notes
Debt Instrument
Long-term debt					$ 790,000,000		$ 790,000,000			789,000,000
Interest rate, stated percentage (in percent)					7.25%		7.25%
Aggregate principal amount					$ 800,000,000		$ 800,000,000			800,000,000
Effective interest rate, percentage (in percent)					7.50%		7.50%
Debt, fair value					$ 826,000,000		$ 826,000,000
2030 Secured Notes \| Senior Notes
Debt Instrument
Long-term debt					$ 693,000,000		$ 693,000,000			692,000,000
Interest rate, stated percentage (in percent)					7.75%		7.75%
Aggregate principal amount					$ 700,000,000		$ 700,000,000			700,000,000
Effective interest rate, percentage (in percent)					7.90%		7.90%
Debt, fair value					$ 736,000,000		$ 736,000,000
2032 Secured Notes \| Senior Notes
Debt Instrument
Long-term debt					$ 692,000,000		$ 692,000,000			692,000,000
Interest rate, stated percentage (in percent)					6.75%		6.75%
Aggregate principal amount					$ 700,000,000		$ 700,000,000			700,000,000
Effective interest rate, percentage (in percent)					6.80%		6.80%
Debt, fair value					$ 719,000,000		$ 719,000,000
2034 Secured Notes \| Senior Notes
Debt Instrument
Long-term debt					$ 395,000,000		$ 395,000,000			0
Interest rate, stated percentage (in percent)					7.125%		7.125%
Aggregate principal amount					$ 400,000,000		$ 400,000,000		$ 400,000,000	0
Effective interest rate, percentage (in percent)					7.20%		7.20%
Debt, fair value					$ 412,000,000		$ 412,000,000
Senior Secured Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument
Debt instrument, term							5 years
Maximum borrowing capacity					500,000,000		$ 500,000,000
Letters of credit outstanding, amount					82,000,000		82,000,000
2028 Notes \| Convertible Debt
Debt Instrument
Long-term debt	$ 444,000,000	$ 56,000,000		$ 89,000,000	0		0			583,000,000
Interest rate, stated percentage (in percent)		3.50%
Aggregate principal amount					0		0			$ 589,000,000
Repurchase of aggregate principal amount		$ 56,000,000		89,000,000	$ 145,000,000		$ 145,000,000
Gain (loss) on debt extinguishment		43,000,000		59,000,000
Payment for debt extinguishment	$ 444,000,000	$ 99,000,000		$ 148,000,000
Settlement of convertible senior notes (in shares) \| shares	4.5