Revenues - Reconciliation of ASC 606 to Prior Accounting Standards (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Dec. 31, 2017	Jan. 02, 2016
Consolidated Balance Sheets
Inventories	$ 3,818				$ 4,150				$ 3,818	$ 4,150
Property, plant and equipment, net	2,615				2,721				2,615	2,721
Total assets	14,264				15,340				14,264	15,340
Total liabilities	9,072				9,693				9,072	9,693
Retained earnings	5,407				5,368				5,407	5,368
Total shareholders' equity	5,192				5,647				5,192	5,647	$ 5,574		$ 4,964
Consolidated Statements of Operations
Total revenues									13,972	14,198	13,788
Cost of sales									11,594
Income from continuing operations before income taxes									1,384	762	876
Income tax expense	32	$ 65	$ 36	$ 29	329	$ 44	$ 62	$ 21	162	456	33
Income from continuing operations	246	563	224	189	(106)	159	153	100	1,222	306	843
Net income	$ 246	$ 563	$ 224	$ 189	$ (106)	$ 159	$ 153	$ 101	$ 1,222	$ 307	$ 962
Basic earnings per share - continuing operations	$ 1.02	$ 2.29	$ 0.88	$ 0.73	$ (0.40)	$ 0.60	$ 0.57	$ 0.37	$ 4.88	$ 1.15	$ 3.11
Diluted earnings per share - continuing operations	$ 1.02	$ 2.26	$ 0.87	$ 0.72	$ (0.40)	$ 0.60	$ 0.57	$ 0.37	$ 4.83	$ 1.14	$ 3.09
Consolidated Statements of Comprehensive Income
Other comprehensive income									$ (130)	$ 230	$ (207)
Comprehensive income									1,092	537	755
Consolidated Statements of Cash flows
Net income	$ 246	$ 563	$ 224	$ 189	$ (106)	$ 159	$ 153	$ 101	1,222	307	962
Income from continuing operations									1,222
Deferred income taxes									49	346	48
Accounts receivable, net									50	(236)	(33)
Inventories									41	412	(352)
Other assets									(88)	(44)	(15)
Other liabilities									(223)	(113)	(281)
Net cash provided by (used in) operating activities of continuing operations									1,109	963	927
Effect of adoption of ASC 606
Consolidated Balance Sheets
Accounts receivable, net	219								219
Inventories	228								228
Other current assets	(454)								(454)
Property, plant and equipment, net	6								6
Other assets	36								36
Total assets	35								35
Other current liabilities	145								145
Total liabilities	145								145
Retained earnings	(110)								(110)
Total shareholders' equity	(110)								(110)
Consolidated Statements of Operations
Total revenues									(201)
Cost of sales									(174)
Income from continuing operations before income taxes									(27)
Income tax expense									(7)
Income from continuing operations									(20)
Net income									$ (20)
Basic earnings per share - continuing operations									$ (0.08)
Diluted earnings per share - continuing operations									$ (0.08)
Consolidated Statements of Comprehensive Income
Other comprehensive income									$ (20)
Comprehensive income									(20)
Consolidated Statements of Cash flows
Net income									(20)
Income from continuing operations									(20)
Deferred income taxes									(7)
Accounts receivable, net									(16)
Inventories									(50)
Other assets									34
Other liabilities									59
Under Prior Accounting
Consolidated Balance Sheets
Accounts receivable, net	1,243								1,243
Inventories	4,046								4,046
Other current assets	331								331
Property, plant and equipment, net	2,621								2,621
Other assets	1,836								1,836
Total assets	14,299								14,299
Other current liabilities	2,294								2,294
Total liabilities	9,217								9,217
Retained earnings	5,297								5,297
Total shareholders' equity	5,082								5,082
Consolidated Statements of Operations
Total revenues									13,771
Cost of sales									11,420
Income from continuing operations before income taxes									1,357
Income tax expense									155
Income from continuing operations									1,202
Net income									$ 1,202
Basic earnings per share - continuing operations									$ 4.80
Diluted earnings per share - continuing operations									$ 4.75
Consolidated Statements of Comprehensive Income
Other comprehensive income									$ (150)
Comprehensive income									1,072
Consolidated Statements of Cash flows
Net income									1,202
Income from continuing operations									1,202
Deferred income taxes									42
Accounts receivable, net									34
Inventories									(9)
Other assets									(54)
Other liabilities									(164)
Net cash provided by (used in) operating activities of continuing operations									1,109
ASC 606
Consolidated Balance Sheets
Accounts receivable, net	1,024								1,024
Inventories	3,818								3,818
Other current assets	785								785
Property, plant and equipment, net	2,615								2,615
Other assets	1,800								1,800
Total assets	14,264								14,264
Other current liabilities	2,149								2,149
Total liabilities	9,072								9,072
Retained earnings	5,407								5,407
Total shareholders' equity	5,192								5,192
ASC 606 | Effect of adoption of ASC 606
Consolidated Balance Sheets
Accounts receivable, net												$ 203
Inventories	199								199
Retained earnings												$ 90
Manufacturing group
Consolidated Balance Sheets
Accounts receivable, net	1,024				1,363				1,024	1,363
Inventories	3,818				4,150				3,818	4,150
Other current assets	785				435				785	435
Property, plant and equipment, net	2,615				2,721				2,615	2,721
Other assets	1,800				2,059				1,800	2,059
Total assets	13,247				14,171				13,247	14,171
Other current liabilities	2,149				2,441				2,149	2,441
Total liabilities	8,246				$ 8,740				8,246	8,740
Consolidated Statements of Operations
Income from continuing operations									1,198	247	832
Consolidated Statements of Cash flows
Deferred income taxes									54	390	36
Accounts receivable, net									50	(236)	(33)
Inventories									45	422	(347)
Other assets									(87)	(43)	17
Other liabilities									(219)	(108)	(276)
Net cash provided by (used in) operating activities of continuing operations									1,127	$ 930	$ 901
Manufacturing group | Effect of adoption of ASC 606
Consolidated Balance Sheets
Total assets	35								35
Total liabilities	145								145
Manufacturing group | Under Prior Accounting
Consolidated Balance Sheets
Total assets	13,282								13,282
Total liabilities	8,391								8,391
Manufacturing group | ASC 606
Consolidated Balance Sheets
Total assets	13,247								13,247
Total liabilities	$ 8,246								8,246
Manufacturing
Consolidated Statements of Operations
Total revenues									13,906
Manufacturing | Effect of adoption of ASC 606
Consolidated Statements of Operations
Total revenues									(201)
Manufacturing | Under Prior Accounting
Consolidated Statements of Operations
Total revenues									$ 13,705