Borrowings (Details)	3 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2015 EUR (€)	Mar. 31, 2015 Seven-year Fixed Rate Euro Bank Loan Due 2022 [Member] EUR (€)	Mar. 31, 2015 Twelve-year Fixed Rate Euro Bank Loan Due 2027 [Member] [Member] EUR (€)	Mar. 31, 2015 Notes 2.3 Percent Due 2019 [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Instrument, Face Amount	$ 1,260,000,000	€ 1,200,000,000	€ 600,000,000	€ 600,000,000
Stated interest rate			0.875%	1.40%
Debt Redemption Price Percent Of Principal Amount					101.00%
Proceeds from Notes Payable	$ 1,240,000,000