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.