Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Operating activities
Net income	$ 371	$ 350
Adjustments to reconcile net income to operating cash flows:
Depreciation and amortization	112	117
Postretirement benefit plan expense (benefit)	(68)	(39)
Deferred income taxes	17	8
Stock compensation	20	19
Other	13	(11)
Postretirement benefit plan contributions	(2)	(6)
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	(155)	(194)
Inventories	(50)	1
Accounts payable	118	44
All other current assets and liabilities	(141)	102
Net cash provided by (used in) operating activities	235	391
Investing activities
Additions to properties	(173)	(112)
Issuance of notes receivable	(20)	(18)
Repayments of notes receivable	28	0
Investments in unconsolidated entities	(10)	0
Acquisition of cost method investments	0	(3)
Purchases of available for sale securities	(2)	(65)
Sales of available for sale securities	5	5
Other	(17)	(9)
Net cash provided by (used in) investing activities	(189)	(202)
Financing activities
Net issuances (reductions) of notes payable	326	549
Reductions of long-term debt	(4)	(3)
Net issuances of common stock	18	46
Common stock repurchases	(240)	0
Cash dividends	(195)	(195)
Collateral received on derivative instruments	0	80
Net cash provided by (used in) financing activities	(95)	477
Effect of exchange rate changes on cash and cash equivalents	5	(47)
Increase (decrease) in cash and cash equivalents	(44)	619
Cash and cash equivalents at beginning of period	435	397
Cash and cash equivalents at end of period	391	1,016
Supplemental cash flow disclosures of non-cash investing activities
Additions to properties included in accounts payable	$ 97	$ 87