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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Current Assets |  |
Allowance for doubtful accounts receivable, current | $ 77 | $ 73
Commitments and contingent liabilities |  |
Shareholders’ Equity |  |
Common Stock, Par Value (in dollars per share) | $ 1 | $ 1
Common Stock, Shares Authorized (in shares) | 2,000,000,000 | 2,000,000,000
Common Stock, Shares Issued (in shares) | 1,465,706,360 | 1,465,706,360

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