Income Taxes (Deferred Tax Balances) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Long-term deferred tax assets (liabilities):
Intangible assets	$ (115)	$ (45)
Unearned Revenue	38	0
Property and equipment	9	4
Deferred customer acquisition costs	(3)	(3)
Prepaid expenses and other assets	(2)	(2)
Operating lease right-of-use assets	(2)	(1)
Receivables allowances	1	1
Accrued liabilities	9	9
Other long-term liabilities	4	7
Operating lease liabilities	6	4
Deferred interest expense	5	(2)
Net operating loss and tax credit carryforwards	3	2
Valuation allowance	(2)	(1)
Net long-term deferred tax liabilities	$ (49)	$ (25)