Earnings Per Share Basic and Diluted (Loss)/Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Basic EPS
Net income attributable to common shareholders-basic	$ (303)	$ (8)	$ (551)	$ (46)
Weighted average shares of common stock outstanding (in shares)	1,142	377	633	377
Basic loss per share (in dollars per share)	$ (0.27)	$ (0.02)	$ (0.87)	$ (0.12)
Diluted EPS
Net income attributable to common shareholders-diluted	$ (303)	$ (8)	$ (551)	$ (46)
Weighted average shares of common stock, including dilutive effect (in shares)	1,142	377	633	377
Diluted loss per share (in dollars per share)	$ (0.27)	$ (0.02)	$ (0.87)	$ (0.12)