CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2021	Apr. 03, 2020
Operating Activities
Net income	$ 466	$ 194
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of acquisition-related intangibles	164	145
Depreciation and other amortization	87	85
Share-based compensation	33	16
Share-based matching contributions under defined contribution plans	57	71
Qualified pension plan contributions	(2)	(2)
Pension and other postretirement benefit plan income	(92)	(80)
Impairment of goodwill and other assets	62	324
Business divestiture-related losses	15	3
Deferred income taxes	(22)	(35)
(Increase) decrease in:
Accounts receivable	213	(164)
Contract assets	(272)	(110)
Inventories	61	40
Prepaid expenses and other current assets	(85)	(29)
Increase (decrease) in:
Accounts payable	15	253
Contract liabilities	9	(47)
Compensation and benefits	(161)	(126)
Income taxes	72	20
Other accrued items	71	51
Other	(30)	(76)
Net cash provided by operating activities	661	533
Investing Activities
Net additions of property, plant and equipment	(64)	(48)
Other investing activities	3	(10)
Net cash used in investing activities	(61)	(58)
Financing Activities
Net proceeds from borrowings	1	245
Repayments of borrowings	(1)	(1)
Proceeds from exercises of employee stock options	10	33
Repurchases of common stock	(700)	(700)
Cash dividends	(209)	(183)
Other financing activities	(1)	(6)
Net cash used in financing activities	(900)	(612)
Effect of exchange rate changes on cash and cash equivalents	0	(24)
Net decrease in cash and cash equivalents	(300)	(161)
Cash and cash equivalents, beginning of year	1,276	824
Cash and cash equivalents, end of quarter	$ 976	$ 663