Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Operating activities
Net income	$ 1,426	$ 837
Adjustments to reconcile net income to operating cash flows:
Depreciation and amortization	374	366
Postretirement benefit plan expense (benefit)	(188)	(191)
Deferred income taxes	99	(21)
Stock compensation	42	53
Gain on unconsolidated entities, net	(200)	0
Other	(91)	46
Postretirement benefit plan contributions	(279)	(33)
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	(139)	(1,168)
Inventories	(67)	78
Accounts payable	103	135
All other current assets and liabilities	(154)	88
Net cash provided by (used in) operating activities	926	190
Investing activities
Additions to properties	(389)	(374)
Collections of deferred purchase price on securitized trade receivables	0	945
Acquisitions, net of cash acquired	(28)	4
Investments in unconsolidated entities	(389)	0
Acquisition of cost method investment	(6)	(6)
Other	27	(1)
Net cash provided by (used in) investing activities	(785)	568
Financing activities
Net issuances (reductions) of notes payable	(198)	134
Issuances of long-term debt	993	656
Reductions of long-term debt	(401)	(626)
Net issuances of common stock	160	87
Common stock repurchases	(120)	(516)
Cash dividends	(568)	(550)
Other	(2)	0
Net cash provided by (used in) financing activities	(136)	(815)
Effect of exchange rate changes on cash and cash equivalents	23	44
Increase (decrease) in cash and cash equivalents	28	(13)
Cash and cash equivalents at beginning of period	281	280
Cash and cash equivalents at end of period	309	267
Supplemental cash flow disclosures
Interest paid	153	149
Income taxes paid	163	279
Supplemental cash flow disclosures of non-cash investing activities
Beneficial interests obtained in exchange for securitized trade receivables	0	951
Additions to properties included in accounts payable	$ 98	$ 85