Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 26, 2015	Sep. 27, 2014
Non-cash Activities [Abstract]
Fair value of assets of acquired businesses	$ 315.6	$ 19,622.8
Cash paid for acquired businesses	(307.6)	(13,530.6)
Liabilities assumed of acquired businesses	8.0	6,092.2
Declared but unpaid dividends	61.1	61.6
Issuance of stock upon vesting of restricted stock units	$ 129.4	$ 176.7

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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