Goodwill (Rollforward of Goodwill) (Details) $ in Millions	3 Months Ended
Mar. 29, 2019 USD ($)
Goodwill [Roll Forward]
Balance, December 31, 2018	$ 25,906.0
Attributable to 2019 acquisitions	211.1
Adjustments due to finalization of purchase price allocations	(6.1)
Foreign currency translation and other	(109.6)
Balance, March 29, 2019	$ 26,001.4

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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