Accounting Polices Related to Revenue from Contracts with Customers Contract with Customer, Asset and Liability (Tables)

6 Months Ended

Jun. 30, 2018

Contract with Customer, Asset and Liability [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

The following table presents the net contract asset and contract liability balances as of June 30, 2018 and January 1, 2018:

In millions	Location in the Condensed Consolidated Balance Sheet	June 30, 2018		January 1, 2018
Current portion of contract assets	Other current assets	$	22	$	28
Current portion of contract liabilities	Contract liabilities	$	469	$	458
Non-current portion of contract liabilities	Other liabilities	$	90	$	95