Earnings Per Share (Narrative) (Details) - shares shares in Millions	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Common shares outstanding	337.4	337.0

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Name:	us-gaap_CommonStockSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant