Significant Accounting and Reporting Policies (Details) - Forecast [Member] - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in non-essential capital expenditures	$ 75	$ 75
Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in non-essential capital expenditures	$ 100	$ 100

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration