Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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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.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Debt - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended		12 Months Ended
Debt - Narrative (Details) - USD ($) $ in Millions	May 31, 2025	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Debt Instrument [Line Items]
Debt issuance costs		$ 10	$ 0
Fair Value, Inputs, Level 2
Debt Instrument [Line Items]
Long-term debt fair value		$ 6,610		$ 6,255
Senior Notes and Debentures \| U.S. dollar at 4.75% due 2026
Debt Instrument [Line Items]
Debt, face amount	$ 875
Debt instrument, stated percentage	4.75%
Senior Notes and Debentures \| U.S. dollar at 5.875% due 2033
Debt Instrument [Line Items]
Debt, face amount	$ 700
Debt instrument, stated percentage	5.875%	5.875%
Debt issuance costs	$ 10
Senior Notes and Debentures \| U.S. dollar at 4.75% due 2026
Debt Instrument [Line Items]
Debt instrument, stated percentage		4.75%
Senior Secured Borrowings \| SOFR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)		1.10%		1.10%
Senior Secured Borrowings \| EURIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)		1.00%		1.00%