Consolidated Statements of Financial Position (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 7,964	$ 7,258
Long-term Debt, Current Maturities	$ 70	$ 1,072
Preferred Stock, par value	$ 1	$ 1
Preferred Stock, shares authorized	10,000,000	10,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common stock, Par Value	$ 1	$ 1
Common stock, shares authorized	800,000,000	800,000,000
Common stock, shares issued	150,109,271	153,157,924
Common stock, shares outstanding	150,109,271	153,157,924