Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
Operating activities
Net income	$ 756	$ 704
Adjustments to reconcile net income to operating cash flows:
Depreciation and amortization	232	234
Postretirement benefit plan expense (benefit)	(137)	(58)
Deferred income taxes	50	23
Stock compensation	39	37
Other	3	(17)
Postretirement benefit plan contributions	(10)	(12)
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	(138)	(165)
Inventories	(89)	(33)
Accounts payable	139	105
All other current assets and liabilities	(158)	153
Net cash provided by (used in) operating activities	687	971
Investing activities
Additions to properties	(301)	(218)
Issuance of notes receivable	(29)	(19)
Repayments of notes receivable	28	0
Purchase of marketable securities	0	(200)
Investments in unconsolidated entities	(10)	0
Acquisition of cost method investments	(1)	(4)
Purchases of available for sale securities	(5)	(70)
Sales of available for sale securities	6	7
Other	(18)	(11)
Net cash provided by (used in) investing activities	(330)	(515)
Financing activities
Net issuances (reductions) of notes payable	450	13
Issuances of long-term debt	361	554
Reductions of long-term debt	(616)	(40)
Net issuances of common stock	38	60
Common stock repurchases	(240)	0
Cash dividends	(392)	(390)
Collateral received on derivative instruments	0	38
Other	(2)	(1)
Net cash provided by (used in) financing activities	(401)	234
Effect of exchange rate changes on cash and cash equivalents	4	(40)
Increase (decrease) in cash and cash equivalents	(40)	650
Cash and cash equivalents at beginning of period	435	397
Cash and cash equivalents at end of period	395	1,047
Supplemental cash flow disclosures of non-cash investing activities
Additions to properties included in accounts payable	$ 79	$ 78