CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2020	Jun. 28, 2019
Operating Activities
Net income	$ 472	$ 511
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	515	129
Share-based compensation	40	29
Share-based matching contributions under defined contribution plans	122	42
Qualified pension plan contributions	(4)	(1)
Pension and other postretirement benefit plan income	(160)	(74)
Impairment of goodwill and other assets	394	0
Divestiture-related losses	52	0
Deferred income taxes	(109)	41
(Increase) decrease in:
Accounts receivable	(59)	19
Contract assets	43	22
Inventories	175	13
Increase (decrease) in:
Accounts payable	(116)	17
Contract liabilities	(80)	17
Compensation and benefits	(29)	33
Income taxes	92	(96)
Other accrued items	(60)	(10)
Other	47	24
Net cash provided by operating activities	1,335	716
Investing Activities
Net additions of property, plant and equipment	(108)	(94)
Proceeds from sales of businesses, net	963	0
Other investing activities	(10)	2
Net cash provided by (used in) investing activities	845	(92)
Financing Activities
Net proceeds from borrowings	248	1
Repayments of borrowings	(254)	(305)
Proceeds from exercises of employee stock options	37	32
Repurchases of common stock	(700)	0
Cash dividends	(367)	(162)
Other financing activities	(6)	(5)
Net cash used in financing activities	(1,042)	(439)
Effect of exchange rate changes on cash and cash equivalents	(15)	2
Net increase in cash and cash equivalents	1,123	187
Cash and cash equivalents, beginning of year	824	343
Cash and cash equivalents, end of quarter	$ 1,947	$ 530