Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Debt - Schedule of Debt Outstanding (Parenthetical) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Aug. 31, 2021	Dec. 31, 2020	Aug. 31, 2020
Term Loan, Third Incremental
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 6
$24m Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 24
$226m Revolving Credit Facility, Amended
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 226
$294m Revolving Credit Facility, Amended
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 294	$ 294		$ 226