Rollforward of Reserves for Federal State and Foreign Tax Jurisdictions (Detail) - USD ($) $ in Millions	8 Months Ended	12 Months Ended
	Sep. 09, 2017	Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of year	$ 1,885	$ 1,547
Additions for tax positions related to the current year	214	349
Additions for tax positions from prior years	49	139
Reductions for tax positions from prior years	(15)	(70)
Settlement payments	(4)	(26)
Statute of limitations expiration	(15)	(27)
Translation and other	57	27
Balance, end of period	$ 2,171	$ 1,885