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Credit Facilities and Long-Term Debt (Details Textual)	Mar. 05, 2019 USD ($)	Sep. 20, 2011 USD ($)	Dec. 31, 2020 USD ($)	Jun. 26, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 03, 2019 USD ($)	Jun. 03, 2019 EUR (€)	Oct. 11, 2016 USD ($)	Mar. 11, 2016 EUR (€)
Debt Instrument
Senior notes issued				$ 500,000,000
Senior Notes
Debt Instrument
Redemption price percentage		101.00%
Commercial paper
Debt Instrument
Outstanding balances			$ 0		$ 276,000,000
3.250% Senior Notes Due 2026
Debt Instrument
Fair value of senior notes due			$ 563,000,000		518,000,000
Interest on notes due			3.25%					3.25%
Senior notes issued								$ 500,000,000
Outstanding balances			$ 500,000,000		500,000,000
4.875% Senior Notes Due 2021
Debt Instrument
Interest on notes due		4.875%	4.875%
Senior notes issued		$ 600,000,000
Outstanding balances			$ 600,000,000		600,000,000
2.250% Senior Notes Due 2023
Debt Instrument
Fair value of senior notes due			$ 640,000,000		591,000,000
Interest on notes due			2.25%
Outstanding balances			$ 612,000,000		557,000,000
2.250% Senior Notes Due 2023 \| Senior Notes
Debt Instrument
Interest on notes due									2.25%
Senior notes issued \| €									€ 500,000,000
4.375% Senior Notes Due 2046
Debt Instrument
Fair value of senior notes due			$ 496,000,000		431,000,000
Interest on notes due			4.375%					4.375%
Senior notes issued								$ 400,000,000
Outstanding balances			$ 400,000,000		400,000,000
Five Year Revolving Credit Facility 2019 [Member] \| Revolving Credit Facility
Debt Instrument
Increase in borrowing capacity	$ 200,000,000
Maximum increase in borrowing capacity	$ 1,000,000,000
Term of debt	5 years
Debt instrument aggregate principal amount	$ 800,000,000
US Dollar Commercial Paper Program [Member]
Debt Instrument
Senior notes issued			600,000,000
Euro Commercial Paper Program [Member]
Debt Instrument
Senior notes issued						$ 612,000,000	€ 500,000,000
Commercial paper			$ 0			$ 276,000,000
Senior Notes Due Twenty Twenty Eight
Debt Instrument
Interest on notes due			1.95%	1.95%
Outstanding balances			$ 500,000,000		0
Senior Notes Due Twenty Thirty One
Debt Instrument
Interest on notes due			2.25%	2.25%
Outstanding balances			$ 500,000,000		0
Level 2 \| 4.875% Senior Notes Due 2021
Debt Instrument
Fair value of senior notes due			620,000,000		$ 629,000,000
Level 2 \| Senior Notes Due Twenty Twenty Eight
Debt Instrument
Fair value of senior notes due			529,000,000
Level 2 \| Senior Notes Due Twenty Thirty One
Debt Instrument
Fair value of senior notes due			$ 527,000,000