CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2025	Mar. 29, 2024
Operating Activities
Net income	$ 386	$ 285
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	301	320
Share-based compensation	19	26
Net periodic benefit income	(84)	(72)
Share-based matching contributions under defined contribution plans	68	70
Deferred income taxes	(89)	(111)
(Increase) decrease in:
Receivables, net	(447)	7
Contract assets	(420)	(340)
Inventories, net	92	(21)
Other current assets	(19)	10
Increase (decrease) in:
Accounts payable	52	9
Contract liabilities	(16)	(152)
Compensation and benefits	(105)	(170)
Other current liabilities	11	(18)
Income taxes	273	103
Other operating activities	(64)	(50)
Net cash used in operating activities	(42)	(104)
Investing Activities
Capital expenditures	(59)	(115)
Proceeds from sales of businesses, net of cash divested	831	0
Other investing activities	(28)	(1)
Net cash provided by (used in) investing activities	744	(116)
Financing Activities
Proceeds from issuances of long-term debt, net	0	2,237
Repayments of long-term debt	(5)	(2,250)
Change in commercial paper, maturities under 90 days, net	20	326
Proceeds from commercial paper, maturities over 90 days	0	480
Repayments of commercial paper, maturities over 90 days	0	(205)
Repurchases of common stock	(569)	(233)
Dividends paid	(228)	(224)
Other financing activities	(23)	13
Net cash (used in) provided by financing activities	(805)	144
Effect of exchange rate changes on cash and cash equivalents	5	(7)
Net decrease in cash and cash equivalents	(98)	(83)
Cash and cash equivalents, beginning of period	615	560
Cash and cash equivalents, end of period	$ 517	$ 477