Consolidated Statements of Equity (Parenthetical) shares in Millions, $ in Millions	Jan. 01, 2016 USD ($)
Accounting Standards Update 2016-09 [Member] \| Retained Earnings [Member]
Cumulative effect of the adoption of new accounting standard	$ 13

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

Name:	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant