The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Debt - Debt Repayments (Details) - USD ($) $ in Millions		6 Months Ended
Debt - Debt Repayments (Details) - USD ($) $ in Millions	Feb. 02, 2016	Jun. 30, 2016	Jun. 30, 2015
Debt Instrument [Line Items]
Authorized net debt repayments (up to)	$ 1,500
Repayments of long-term debt		$ 1,566	$ 250
Credit Facilities
Debt Instrument [Line Items]
Repayments of long-term debt		$ 1,300