EBITDA to Income from Continuing Operations Reconciliation (Detail) - USD ($) $ in Millions			12 Months Ended
	May 26, 2016	May 06, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting [Abstract]
Total segment EBITDA			$ 2,976	$ 2,564	$ 2,903
Reconciling items
Depreciation and amortization			(800)	(759)	(792)
Stock compensation			(115)	(126)	(126)
Net interest expense			(66)	(126)	(145)
Restructuring charges, net			(285)	(130)	6
Certain foreign exchange fluctuations and hedging activities			34	197	37
Net realized gains on the Retained Share transactions	$ 537	$ 611	4,387
Net loss on debt extinguishment			(153)	(130)
Other Corporate items			(1,024)	(1,062)	(1,393)
Income from continuing operations before income taxes			$ 4,954	$ 428	$ 490