Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.3.1.900
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 27, 2016
Dec. 27, 2015
Mar. 29, 2015
Mar. 27, 2016
Sep. 25, 2016
Sep. 27, 2015
Income Taxes [Line Items]            
Effective income tax rate 21.00%         19.00%
Tax benefits from foreign income taxed at rates lower than rates in the United States           14.00%
Tax benefit recognized in period related to prior period attributable to federal research and development tax credit   $ 79.0       $ 101.0
Resolution of governmental investigation, Amount     $ 975.0 $ 7.5    
Tax benefit as a result of a favorable tax audit settlement     $ 61.0      
Unrecognized Tax Benefits $ 154.0     $ 154.0   $ 40.0
Scenario, Forecast [Member]            
Income Taxes [Line Items]            
Effective income tax rate         18.00%  
Tax benefits from foreign income taxed at rates lower than rates in the United States         15.00%