Condensed Consolidated Balance Sheet (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Condensed Consolidated Balance Sheet (Parenthetical) [Abstract]
Accumulated depreciation, property and equipment	$ 12,220	$ 11,937
Common stock, shares outstanding	433	432
Common stock, shares authorized	600	600
Common stock, par value	$ 0.01	$ 0.01

Condensed Consolidated Balance Sheet (Parenthetical) [Abstract]

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- Definition

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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- Definition

Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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