Fair Value Measurements (Carrying Amounts And Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions	Apr. 01, 2016	Dec. 31, 2015
Assets:
Available-for-sale securities	$ 90.1	$ 342.3
Carrying amount
Assets:
Available-for-sale securities	90.1	342.3
Liabilities:
Short-term borrowings	197.0	845.2
Long-term borrowings	12,194.7	12,025.2
Fair value
Assets:
Available-for-sale securities	90.1	342.3
Liabilities:
Short-term borrowings	197.0	845.2
Long-term borrowings	$ 12,840.0	$ 12,471.4