Condensed Consolidated Statements of Financial Position (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Property, plant and equipment, accumulated depreciation	$ 5,079	$ 5,115
Class A Common Stock
Common stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	2,000,000,000	2,000,000,000
Common stock issued (in shares)	828,000,000	724,000,000
Common stock outstanding (in shares)	828,000,000	724,000,000
Class B Common Stock
Common stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	1,250,000,000	1,250,000,000
Common stock issued (in shares)	214,000,000	311,000,000
Common stock outstanding (in shares)	214,000,000	311,000,000

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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