Debt Junior Unsecured Notes (Details) - USD ($) $ in Millions		6 Months Ended
Sep. 13, 2024	Jun. 30, 2025
Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	100.00%
Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	102.00%
Junior Notes, 6.875% due 2054 \| Junior Notes
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 500
Debt Instrument, Interest Rate, Stated Percentage	6.875%	6.875%
Basis spread on variable rate		3.385%
Payments of Debt Issuance Costs	$ 7
2024 Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Face Amount	1,650
Payments of Debt Issuance Costs	$ 16

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

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