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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Current Assets |  |  |
Allowance for doubtful accounts receivable, current | $ 73 | $ 59 |
Commitments and contingent liabilities |  |  | [1]
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 |
[1] | Prior year amounts have been reclassified to conform to the current year presentation of debt issuance costs required by Accounting Standards Update (“ASU”) No. 2015-03 “Simplifying the Presentation of Debt Issuance Costs.” See Note 2, Summary of Significant Accounting Policies to the Consolidated Financial Statements for additional information.

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