Receivables, net, Contract Assets and Contract Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Receivables, Net, Contract Assets and Contract Liabilities

Receivables, net, contract assets and contract liabilities were as follows (in millions):

	2018		2017
Receivables, net	$	2,444	$	2,265
Contract assets	9,472		7,992
Contract liabilities	6,491		7,028