Stockholders' Equity (Summary of Purchases of Common Stock) (Details) - Share Repurchase Program Open [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended	8 Months Ended
Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2022
Stockholders Equity [Line Items]
Total Number of Shares Purchased	5,052	3,979	13,983	23,014
Dollar Value of Shares Purchased	$ 318	$ 230	$ 589	$ 1,137
Average Price Paid per Share	$ 63.07	$ 57.74	$ 42.15	$ 49.44

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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