Fair Value Measurements (Carrying Amounts and Fair Values of Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 27, 2019	Dec. 31, 2018
Assets:
Available-for-sale debt securities	$ 35.7	$ 38.3
Investment in equity securities	314.4	148.9
Cross-currency swap derivative contracts	36.8
Liabilities:
Interest rate swap derivative contracts	64.0
Carrying Amount
Assets:
Available-for-sale debt securities	35.7	38.3
Investment in equity securities	314.4	148.9
Cross-currency swap derivative contracts	36.8	0.0
Liabilities:
Interest rate swap derivative contracts	64.0	0.0
Notes payable and current portion of long-term debt	1,068.6	51.8
Long-term debt	16,536.2	9,688.5
Fair Value
Assets:
Available-for-sale debt securities	35.7	38.3
Investment in equity securities	314.4	148.9
Cross-currency swap derivative contracts	36.8	0.0
Liabilities:
Interest rate swap derivative contracts	64.0	0.0
Notes payable and current portion of long-term debt	1,068.6	51.8
Long-term debt	$ 17,045.5	$ 9,990.6

Interest Rate Swap, Liability, Fair Value Disclosure

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

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