Fair Value Measurements (Details 2) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 03, 2015
Mar. 28, 2014
Nonrecurring fair value measurements    
Assets held for sale $ (23) $ 0
Intangible Assets (52) 0
Investment in formerly unconsolidated subsidiary (19) 0
Valuation of shares in equity method investee gains/ (loss) (6) 0
Total $ (100) $ 0
Exercise of Options 10.00%