Hedging Transactions and Derivative Financial Instruments (Notional Values of Derivative Instruments) (Details) - Contracts designated as hedging instruments	Mar. 31, 2016 EUR (€) T	Mar. 31, 2016 GBP (£) T	Mar. 31, 2016 USD ($) T	Mar. 31, 2016 KRW (₩) T
April 2016 - June 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	130	130	130	130
July 2016 - September 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	127	127	127	127
October 2016 - December 2016
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	117	117	117	117
January 2017 - March 2017
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	53	53	53	53
April 2017 - June 2017
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	26	26	26	26
CNY/USD
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | $			$ 6,768,139
USD/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €	€ 5,250,318
CNY/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €	2,812,683
USD/KRW
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ₩				₩ 7,401,436,000
JPY/EUR
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €	€ 1,367,462
EUR/GBP
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | £		£ 150,000
JPY/USD
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | $			$ 651,208