Fair Value Measurements (Carrying Amounts And Fair Values Of Financial Instruments) (Details) (USD $) In Millions, unless otherwise specified	Sep. 26, 2014	Dec. 31, 2013
Assets:
Available-for-sale securities	$ 486.9	$ 385.2
Carrying Amount
Assets:
Available-for-sale securities	486.9	385.2
Liabilities:
Short-term borrowings	71.4	62.3
Long-term borrowings	2,964.7	3,436.7
Fair Value
Assets:
Available-for-sale securities	486.9	385.2
Liabilities:
Short-term borrowings	71.4	62.3
Long-term borrowings	$ 3,351.3	$ 3,877.6