CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) shares in Millions, $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 52	$ 49
Accumulated depreciation	5,146	4,808
Accumulated amortization	$ 420	$ 400
Common stock, par value (in USD per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	250	250
Common stock, shares issued (in shares)	114	114
Common stock, shares outstanding (in shares)	55	54
Treasury stock (in shares)	60	60