Revenue from Contract with Customer (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Contract Assets and Liabilities

The following summarizes information about our contract assets and liabilities:

	December 31,
(in millions)	2021		2020
Information about contract assets:
Contract assets
Unbilled receivables - reimbursable contracts	$	709	$	590
Contract work in progress - lump sum contracts	223		270
Contract assets	$	932	$	860
Advance billings deducted from contract assets	$	208	$	308
	Year Ended December 31,
	2021		2020
Information about contract liabilities:
Provision for anticipated losses on contracts included in contract liabilities	$	215	$	203
Revenue recognized that was included in contract liabilities as of January 1	848		751