Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for accounts and notes receivable	$ 44	$ 37
Common stock, shares authorized (in shares)	2,500,000,000	2,500,000,000
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	650,026,318	648,643,223
Treasury Stock, shares repurchased (in shares)	211,771,827	211,771,827