Hedging Transactions and Derivative Financial Instruments (Notional Values of Derivative Instruments) (Details) - Contracts designated as hedging instruments	Jun. 30, 2016 JPY (¥) T	Jun. 30, 2016 GBP (£) T	Jun. 30, 2016 CNY (¥) T	Jun. 30, 2016 KRW (₩) T	Jun. 30, 2016 EUR (€) T
July 2016 - September 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	127	127	127	127	127
October 2016 - December 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	117	117	117	117	117
January 2017 - March 2017
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	95	95	95	95	95
April 2017 - June 2017
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	61	61	61	61	61
July 2017 - September 2017
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	28	28	28	28	28
CNY/USD
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ¥			¥ 1,189,444
USD/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €					€ 43,177,841
USD/KRW
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ₩				₩ 12,239,440,000
JPY/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ¥	¥ 169,000,000
EUR/GBP
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | £		£ 39,000
JPY/USD
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ¥	¥ 19,000,000
HUF/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €					€ 811,955