Fair Value Measurements (Carrying Amounts And Fair Values Of Financial Instruments) (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Dec. 31, 2014
Assets:
Available-for-sale securities	$ 342.3	$ 257.5
Carrying Amount
Assets:
Available-for-sale securities	342.3	257.5
Liabilities:
Short-term borrowings	123.7	71.9
Long-term borrowings	3,053.8	3,401.5
Fair Value
Assets:
Available-for-sale securities	342.3	257.5
Liabilities:
Short-term borrowings	123.7	71.9
Long-term borrowings	$ 3,400.2	$ 3,809.1