Condensed Consolidated Statement of Shareholders' Investment (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Increase (Decrease) in Shareholders' Investment
Beginning balance, treasury stock, common (in shares)			221,191,228
Ending balance, treasury stock, common (in shares)	242,345,663		242,345,663
Common Stock
Increase (Decrease) in Shareholders' Investment
Beginning balance (in shares)	1,985,676,735	1,982,553,488	1,985,273,421	1,981,156,896
Issued under incentive stock programs (in shares)	242,705	550,366	646,019	1,946,958
Ending balance (in shares)	1,985,919,440	1,983,103,854	1,985,919,440	1,983,103,854
Treasury Stock, Common
Increase (Decrease) in Shareholders' Investment
Beginning balance, treasury stock, common (in shares)	234,456,992	209,736,139	221,191,228	209,926,622
Issued under incentive stock programs (in shares)	528,436	545,860	4,808,575	5,524,291
Purchased (in shares)	8,417,107	5,626,606	25,963,010	10,414,554
Ending balance, treasury stock, common (in shares)	242,345,663	214,816,885	242,345,663	214,816,885
Retained Earnings
Increase (Decrease) in Shareholders' Investment
Cash dividends declared on common shares (in dollars per share)	$ 0.47	$ 0.45	$ 1.41	$ 1.35