Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in stock.

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- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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- Definition

Amount of stock repurchase plan authorized.

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Stockholders' Equity (Narrative) (Details) € in Millions	12 Months Ended
Stockholders' Equity (Narrative) (Details) € in Millions	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 EUR (€)	Dec. 11, 2018 USD ($)	Apr. 25, 2017 USD ($)
Stockholders' Equity Note [Abstract]
Dividends	$ 238,100,000	$ 60,600,000	€ 60.6	$ 262,600,000	€ 236.6
Dividends, common stock, cash \| €					100.8
Dividends, common stock, stock \| €					€ 135.8
Payments for Repurchase of Common Stock \| $	442,600,000	$ 58,500,000		$ 186,800,000
Stock repurchase program, authorized amount \| $	$ 800,000,000.0					$ 300,000,000.0	$ 500,000,000.0