Shareholder's Equity - MEC (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
Jan. 31, 2023	Mar. 31, 2023	Mar. 31, 2022
MEC
Class of Stock [Line Items]
Dividends paid	$ 100	$ 100	$ 0

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

Name:	us-gaap_PaymentsOfDividendsCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration