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Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2022

Supplemental Cash Flow Information [Abstract]

Consolidated statements of cash flows

The changes in assets and liabilities included in operating cash flow follow:

			Year Ended December 31,
(in millions)			2022			2021			2020
(Increase) decrease in:
Accounts and notes receivable, net			$	22		$	5		$	138
Contract assets			133			(179)			280
Other current assets			192			(167)			4
Other assets			159			284			77
Increase (decrease) in:
Accounts payable			(175)			6			(343)
Contract liabilities			(135)			(176)			(53)
Accrued liabilities			(155)			109			(12)
Other liabilities			(87)			(79)			(60)
Increase (decrease) in cash due to changes in assets and liabilities			$	(46)		$	(197)		$	31
Cash paid during the year for:
Interest			$	54		$	90		$	66
Income taxes (net of refunds)			99			75			65

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