Debt - 3.692% Senior Unsecured Notes Due 2028 - Additional Information (Detail) - 3.692% Senior Unsecured Notes due 2028 [Member] - EUR (€)		12 Months Ended
	Dec. 05, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Senior unsecured notes face amount	€ 600,000,000
Senior unsecured notes, interest rate	3.692%	3.692%	[1]
Percentage of par value on senior notes	99.998%
Senior unsecured notes, payable term		Interest on the notes is payable on June 5 of each year.
Senior unsecured notes, maturity date	Jun. 05, 2028
Senior unsecured notes, redemption period	30 days
Senior notes, repurchased price percentage on principal amount plus accrued and unpaid interest	101.00%
Senior unsecured notes, redemption price percentage	100.00%
Senior unsecured notes, redemption description		We may redeem some or all of the 3.692% Senior Unsecured Notes due 2028 at any time. If the notes are redeemed prior to 30 days before maturity, the redemption price will be equal to 100% of the principal amount, plus a make-whole premium, plus accrued and unpaid interest to, but excluding, the applicable redemption date. The 3.692% Senior Unsecured Notes due 2028 are fully and unconditionally guaranteed on an unsecured basis by us. In the event of change of control, each holder of the notes may require us to repurchase some or all of our notes at a repurchase price equal to 101% of the aggregate principal amount of the notes plus accrued and unpaid interest to the date of the purchase.

[1] Non-U.S. dollar denominated debt that reflects the exchange rate at period end.