Segment Information - Results (Details) $ in Millions		3 Months Ended
Nov. 01, 2017 segment	Mar. 31, 2018 USD ($) category segment	Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	2	2
Revenues		$ 5,945	$ 4,209
Expenses		5,195	3,578
OPERATING INCOME		$ 750	631
Number of categories of products and services \| category		5
Business
Segment Reporting Information [Line Items]
Revenues		$ 4,383	2,590
Expenses		2,613	1,566
OPERATING INCOME		$ 1,770	$ 1,024
Margin percentage		40.00%	40.00%
Consumer
Segment Reporting Information [Line Items]
Revenues		$ 1,379	$ 1,447
Expenses		613	640
OPERATING INCOME		$ 766	$ 807
Margin percentage		56.00%	56.00%
Operating segments
Segment Reporting Information [Line Items]
Revenues		$ 5,762	$ 4,037
Expenses		3,226	2,206
OPERATING INCOME		$ 2,536	$ 1,831
Margin percentage		44.00%	45.00%
Operating segments \| Business
Segment Reporting Information [Line Items]
Revenues		$ 4,383	$ 2,590
Operating segments \| Consumer
Segment Reporting Information [Line Items]
Revenues		$ 1,379	$ 1,447

Represents the number of categories in which the entity categorizes the products and services.

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- Definition

Represents the operating margin assigned to segments for the period.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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