Long-term Debt and Finance Leases -Convertible Senior Notes Redemptions (Details) - Convertible Senior Notes, due 2048 - USD ($) $ in Millions		1 Months Ended		12 Months Ended
	Jul. 08, 2025	Apr. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2025
Debt Instrument [Line Items]
Aggregate principal repaid					$ 343
Cash paid					$ 603
Debt conversion, shares Issued (in shares)	3,986,335
Recourse Debt
Debt Instrument [Line Items]
Aggregate principal repaid	$ 12	$ 251		$ 343		$ 92
Redemption percentage of principal	100.00%	179.454%	162.356%
Cash paid	$ 220	$ 452	$ 151	$ 603
Debt conversion, shares Issued (in shares)	3,986,335