Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Basis For Presentation (Details) - USD ($) $ in Millions	3 Months Ended
Basis For Presentation (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019	May 01, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Borrowings under revolving credit facility	$ 350	$ 0
Cash and cash equivalents	$ 488			$ 181
Subsequent Event [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 200