Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense relating to all intangible assets	$ 7	$ 6	$ 22	$ 20
Amortization expense for remainder of the year	7		7
Intangible assets amortization expense, year one	23		23
Intangible assets amortization expense, year two	22		22
Intangible assets amortization expense, year three	16		16
Intangible assets amortization expense, year four	9		9
Intangible assets amortization expense, year five	$ 7		$ 7