Derivatives Additional Information (Detail) $ in Millions	Dec. 30, 2016 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Unrealized gains expected to be reclassified into earnings	$ 65
Derivative, Fair Value, Amount Offset Against Collateral, Net	$ (165)

The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959

Name:	us-gaap_DerivativeFairValueAmountOffsetAgainstCollateralNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant