Financing Activities - Interest Expense (Details) - Convertible Debt - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Debt Instrument [Line Items]
Non-cash amortization of debt issuance costs	$ 3	$ 3
Contractual coupon interest	5	6
Total interest expense	$ 8	$ 9

Amount of the cost of borrowed funds accounted for as interest expense for debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration