Derivatives - Schedule of Derivative Fair Value and Balance Sheet Location (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Recurring \| Cash Flow Hedging \| Other liabilities \| Interest rate swap contracts
Derivative [Line Items]
Interest rate swap contracts	$ 5	$ 1

Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

No definition available.

Name:	us-gaap_InterestRateDerivativesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant