Shareholders' Equity And Net Income Per Share Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2022
Share Repurchase Program [Line Items]
Total number of shares repurchased	1,059,075
Average price paid per share	$ 53.73
Total (in millions)	$ 57
Share Repurchase Program April 2016
Share Repurchase Program [Line Items]
Stock Repurchase Program, Authorized Amount		$ 1,500
Stock Repurchase Program, Remaining Authorized Repurchase Amount		13
Share Repurchase Program January 2019
Share Repurchase Program [Line Items]
Stock Repurchase Program, Authorized Amount		$ 2,000

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Balance Type:	debit
Period Type:	duration