Condensed Consolidated Statements Of Financial Position (Current Period Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2022	Dec. 31, 2021
Common shares, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, authorized (in shares)	1,400,000,000	1,400,000,000
Common shares issued (in shares)	1,112,629,114	1,112,440,400
Common shares outstanding (in shares)	625,168,003	638,841,656