6. Derivative Financial Instruments (Details) - Transaction Exposure - Foreign exchange forward contracts [Member] - Not Designated as Hedging Instrument [Member] € in Millions, ₨ in Millions, ¥ in Millions, RM in Millions, R$ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020 CLP ($)	Dec. 31, 2019 CLP ($)	Mar. 31, 2020 INR (₨)	Mar. 31, 2020 MYR (RM)	Mar. 31, 2020 EUR (€)	Mar. 31, 2020 BRL (R$)	Mar. 31, 2020 MXN ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 JPY (¥)	Mar. 31, 2020 AUD ($)	Mar. 31, 2020 SGD ($)	Mar. 31, 2020 CAD ($)	Dec. 31, 2019 INR (₨)	Dec. 31, 2019 MYR (RM)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 BRL (R$)	Dec. 31, 2019 MXN ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 JPY (¥)	Dec. 31, 2019 AUD ($)	Dec. 31, 2019 SGD ($)	Dec. 31, 2019 CAD ($)
Australia, Dollars
Derivative [Line Items]
Derivative, Currency Bought	Australian dollar	Australian dollar
Derivative, Currency Sold	Australian dollar	Australian dollar
Brazil, Brazil Real
Derivative [Line Items]
Derivative, Currency Bought	Brazilian real	Brazilian real
Derivative, Currency Sold	Brazilian real	Brazilian real
Canada, Dollars
Derivative [Line Items]
Derivative, Currency Bought		Canadian dollar
Derivative, Currency Sold	Canadian dollar	Canadian dollar
Chile, Pesos
Derivative [Line Items]
Derivative, Currency Bought		Chilean peso
Derivative, Currency Sold	Chilean peso	Chilean peso
Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Currency Bought	Euro	Euro
Derivative, Currency Sold	Euro	Euro
India, Rupees
Derivative [Line Items]
Derivative, Currency Bought	Indian rupee
Derivative, Currency Sold	Indian rupee	Indian rupee
Japan, Yen
Derivative [Line Items]
Derivative, Currency Bought	Japanese yen	Japanese yen
Derivative, Currency Sold	Japanese yen	Japanese yen
Malaysia, Ringgits
Derivative [Line Items]
Derivative, Currency Bought	Malaysian ringgit	Malaysian ringgit
Derivative, Currency Sold	Malaysian ringgit	Malaysian ringgit
Mexico, Pesos
Derivative [Line Items]
Derivative, Currency Sold	Mexican peso	Mexican peso
Singapore, Dollars
Derivative [Line Items]
Derivative, Currency Bought	Singapore dollar	Singapore dollar
Long [Member] | Australia, Dollars
Derivative [Line Items]
Derivative, Notional Amount								$ 9.0		$ 14.6								$ 10.4		$ 14.9
Long [Member] | Brazil, Brazil Real
Derivative [Line Items]
Derivative, Notional Amount						R$ 2.6		0.5								R$ 13.2		3.3
Long [Member] | Canada, Dollars
Derivative [Line Items]
Derivative, Notional Amount																		3.4				$ 4.5
Long [Member] | Chile, Pesos
Derivative [Line Items]
Derivative, Notional Amount		$ 1,493.1																2.0
Long [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 88.3			97.4							€ 86.1			96.5
Long [Member] | India, Rupees
Derivative [Line Items]
Derivative, Notional Amount			₨ 470.9					6.2
Long [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount								23.1	¥ 2,496.3									33.3	¥ 3,625.5
Long [Member] | Malaysia, Ringgits
Derivative [Line Items]
Derivative, Notional Amount				RM 89.1				20.5						RM 88.6				21.6
Long [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount								2.0			$ 2.9							2.2			$ 2.9
Short [Member] | Australia, Dollars
Derivative [Line Items]
Derivative, Notional Amount								7.4		$ 12.1								7.8		$ 11.1
Short [Member] | Brazil, Brazil Real
Derivative [Line Items]
Derivative, Notional Amount						R$ 4.3		0.8								R$ 4.3		1.1
Short [Member] | Canada, Dollars
Derivative [Line Items]
Derivative, Notional Amount								3.0				$ 4.3						1.2				$ 1.6
Short [Member] | Chile, Pesos
Derivative [Line Items]
Derivative, Notional Amount	$ 3,679.1	$ 3,866.1						4.3										5.1
Short [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 47.4			52.3							€ 116.3			130.3
Short [Member] | India, Rupees
Derivative [Line Items]
Derivative, Notional Amount			₨ 1,349.2					17.8					₨ 1,283.8					18.0
Short [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount								213.1	¥ 22,990.4									212.2	¥ 23,089.5
Short [Member] | Malaysia, Ringgits
Derivative [Line Items]
Derivative, Notional Amount				RM 36.3				8.4						RM 41.3				10.1
Short [Member] | Mexico, Pesos
Derivative [Line Items]
Derivative, Notional Amount							$ 34.6	$ 1.4									$ 34.6	$ 1.8