CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 67	$ 85
Property, plant and equipment, net of accumulated depreciation	$ 21,318	$ 19,886
Preferred stock-non-redeemable, par value (in dollars per share)	$ 25.00	$ 25.00
Preferred stock-non-redeemable, authorized shares (in shares)	2,000	2,000
Preferred stock-non-redeemable, issued shares (in shares)	7	7
Preferred stock-non-redeemable, outstanding shares (in shares)	7	7
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, authorized shares (in shares)	2,200,000	2,200,000
Common stock, issued shares (in shares)	1,008,486	1,001,688
Common stock, outstanding shares (in shares)	1,008,486	1,001,688