Contract Assets and Contract Liabilities (Tables)

3 Months Ended

Mar. 30, 2018

Revenue from Contract with Customer [Abstract]

Rollforward of Net Contract Assets (Liabilities)

	March 30, 2018			January 1, 2018
	(in millions)
Contract assets	$	1,499		$	1,349
Contract liabilities — current	(607		)	(565		)
Contract liabilities — non-current	(30		)	(28		)
Net contract assets (liabilities)	$	862		$	756

Components of Contract Assets

The components of contract assets are presented in the table below.

	March 30, 2018			January 1, 2018
	(in millions)
Unbilled contract receivables, gross	$	2,481		$	2,232
Unliquidated progress payments and advances	(982		)	(883		)
Total contract assets	$	1,499		$	1,349