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CONSOLIDATED FINANCIAL STATEMENTS Accounting Standards Update 2016-09 (Tables)
 9 Months Ended
Sep. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Adoption of Accounting Standards Update ("ASU") 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting"
In the first quarter of 2017, the Company adopted ASU 2016-09 and elected to apply changes on a retrospective basis to the consolidated statements of cash flows related to the classification of excess tax benefits and employee taxes paid for share-based payment arrangements. See Note 2 for additional information. A summary of the changes made to the consolidated statements of cash flows for the nine months ended September 30, 2016, is included in the following table:

Summary of Changes to the Consolidated Statements of Cash Flows
Nine Months Ended
 
Sep 30, 2016
In millions
As Filed
Updated
Operating Activities
 
 
Excess tax benefits from share-based payment arrangements
$
(39
)
$
—

Other assets and liabilities - net
$
455

$
520

Cash provided by operating activities
$
3,615

$
3,719

Financing Activities
 
 
Excess tax benefits from share-based payment arrangements
$
39

$
—

Employee taxes paid for share-based payment arrangements
$
—

$
(65
)
Cash used in financing activities
$
(2,688
)
$
(2,792
)