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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current Assets
Allowance for doubtful accounts receivable, current	$ 89	$ 76
Shareholders’ Equity
Common stock par value (in USD per share)	$ 1	$ 1
Common stock authorized (in shares)	2,000,000,000	2,000,000,000
Common stock issued (in shares)	1,465,706,360	1,465,706,360

X

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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