Revenue Cost to Obtain a Contract (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Capitalized upfront fees	$ 70		$ 78
Capitalized upfront fees (Note 20)	17		17
Capitalized upfront fees (Note 20)	53		61
Capitalized upfront fees, amortization	8	$ 7
Other Current Assets
Capitalized upfront fees	17		17
Other Long-Term Assets
Capitalized upfront fees	$ 53		$ 61