Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Millions				6 Months Ended
	Jul. 02, 2015	Jul. 01, 2015	Jun. 07, 2013	Jun. 28, 2015
Stockholders Equity [Line Items]
Comprehensive income attributable to redeemable noncontrolling interest				$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				7,336
Comprehensive (loss)/ income				(37)
Dividends Paid to Shareholders				(360)
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				15
Stock option expense				(6)
Adjustments to Additional Paid in Capital, Warrants Exercised				0
Capital contribution				(6)
Ending balance				6,954
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				4
Comprehensive (loss)/ income				0
Dividends Paid to Shareholders				0
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				0
Stock option expense				0
Adjustments to Additional Paid in Capital, Warrants Exercised				0
Capital contribution				0
Ending balance				4
Warrants
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				367
Comprehensive (loss)/ income				0
Dividends Paid to Shareholders				0
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				0
Stock option expense				0
Adjustments to Additional Paid in Capital, Warrants Exercised				(367)
Capital contribution				0
Ending balance				0
Additional Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				7,320
Comprehensive (loss)/ income				0
Dividends Paid to Shareholders				(254)
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				15
Stock option expense				(6)
Adjustments to Additional Paid in Capital, Warrants Exercised				367
Capital contribution				0
Ending balance				7,454
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				0
Comprehensive (loss)/ income				112
Dividends Paid to Shareholders				(106)
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				0
Stock option expense				0
Adjustments to Additional Paid in Capital, Warrants Exercised				0
Capital contribution				(6)
Ending balance				0
Accumulated OCI
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				(574)
Comprehensive (loss)/ income				(145)
Dividends Paid to Shareholders				0
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				0
Stock option expense				0
Adjustments to Additional Paid in Capital, Warrants Exercised				0
Capital contribution				0
Ending balance				(719)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				219
Comprehensive (loss)/ income				(4)
Dividends Paid to Shareholders				0
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options				0
Stock option expense				0
Adjustments to Additional Paid in Capital, Warrants Exercised				0
Capital contribution				0
Ending balance				$ 215
Subsequent Event
Stockholders Equity [Line Items]
Business acquisition, common stock of parent, conversion ratio to common stock of successor company		0.443332
Berkshire Hathaway | Preferred Stock
Stockholders Equity [Line Items]
Warrant, exercise price per share			$ 0.01
Berkshire Hathaway | Warrants
Stockholders Equity [Line Items]
Noncash or part noncash acquisition, equity consideration, warrants issued			46,000,000
Berkshire Hathaway | Warrants | Subsequent Event
Stockholders Equity [Line Items]
Noncash or part noncash acquisition, equity consideration, warrants issued	20,000,000