Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for Accounts Receivable	$ 104	$ 112
Accumulated Depreciation	$ 11,857	$ 11,377
Common Stock, par value (in dollars per share)	$ 0	$ 0
Common Stock, shares authorized (in shares)	450,000,000	450,000,000
Common Stock, shares outstanding (in shares)	283,000,000	283,000,000