Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018		Dec. 30, 2017	Dec. 31, 2016
Operating Activities
Net income	$ 1,344		$ 1,254	$ 700
Adjustments to reconcile net income to operating cash flows
Depreciation and amortization	516	[1]	481	517
Postretirement benefit plan expense (benefit)	170		(427)	198
Deferred income taxes	46		(58)	(24)
Stock compensation	59		66	63
Venezuela deconsolidation	0		0	72
Venezuela remeasurement	0		0	11
Gain from unconsolidated entities, net	(200)		0	0
Noncurrent income taxes payable	(23)		144	(12)
Other	(40)		27	82
Postretirement benefit plan contributions	(287)		(44)	(33)
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	76		(1,300)	(480)
Inventories	(86)		80	7
Accounts payable	115		193	124
All other current assets and liabilities	(154)		(13)	46
Net cash provided by (used in) operating activities	1,536		403	1,271
Investing activities
Additions to properties	(578)		(501)	(507)
Collections of deferred purchase price on securitized trade receivables	0		1,243	501
Acquisitions, net of cash acquired	(28)		(592)	(398)
Reduction of cash due to Venezuela deconsolidation	0		0	(2)
Investments in unconsolidated entities	(389)		0	27
Acquisition of cost method investments	(8)		(7)	(2)
Other	55		6	(11)
Net cash provided by (used in) investing activities	(948)		149	(392)
Financing activities
Net increase (reduction) of notes payable, with maturities less than or equal to 90 days	(264)		153	(918)
Issuances of notes payable, with maturities greater than 90 days	62		17	1,961
Reductions of notes payable, with maturities greater than 90 days	(23)		(238)	(1,831)
Issuances of long-term debt	993		1,251	2,657
Reductions of long-term debt	(408)		(632)	(1,737)
Debt extinguishment costs	0		0	(144)
Net issuances of common stock	167		97	368
Common stock repurchases	(320)		(516)	(426)
Cash dividends	(762)		(736)	(716)
Other	(11)		0	0
Net cash provided by (used in) financing activities	(566)		(604)	(786)
Effect of exchange rate changes on cash and cash equivalents	18		53	(64)
Increase (decrease) in cash and cash equivalents	40		1	29
Cash and cash equivalents at beginning of period	281		280	251
Cash and cash equivalents at end of period	321		281	280
Supplemental cash flow disclosures:
Interest paid	280		258	405
Income taxes paid	188		352	256
Supplemental cash flow disclosures of non-cash investing activities:
Beneficial interests obtained in exchange for securitized trade receivables	0		1,222	538
Additions to properties included in accounts payable	$ 162		$ 151	$ 161

[1] Includes asset impairment charges as discussed in Note 14.