Equity and Financing Arrangements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Feb. 28, 2023	Dec. 01, 2022
Common Stock [Abstract]
Common stock issued during period under the stock plan	0	0	0	0
Dilutive Shares Calculation [Abstract]
Shares included in diluted earnings per share			10,331
Debt Issuance, 5.43% due 2032 | Subsequent Event [Member] | Other Long Term Debt Expected In Future Periods [Member]
Debt Instrument [Line Items]
Face amount						$ 25
Interest rate						5.43%
Debt Issuance, 5.43% due 2033 | Subsequent Event [Member] | Other Long Term Debt Expected In Future Periods [Member]
Debt Instrument [Line Items]
Face amount					$ 15
Interest rate					5.43%
Debt Issuance, 5.53% due 2035 | Subsequent Event [Member] | Other Long Term Debt Expected In Future Periods [Member]
Debt Instrument [Line Items]
Face amount					$ 35
Interest rate					5.53%