Income Taxes - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended				12 Months Ended
	Dec. 29, 2019	Feb. 18, 2020	Dec. 29, 2019	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017	Oct. 31, 2019	Jan. 01, 2017
Tax Credit Carryforward [Line Items]
U.S. statutory rate							21.00%	21.00%	35.00%
Net decrease in tax rate							2.30%
Reversal of deferred tax liability			$ 600					$ 2,800
Reversal of deferred tax asset			200					900
TJCA foreign tax credits, net deferred tax expense (benefit)			$ (400)					1,900
TJCA, foreign tax credit percent	1.70%		2.20%
Increase (decrease) in earnings before taxes, percent				23.50%
Effective tax rate reconciliation, litigation settlement, percent				2.10%
TCJA, increase (decrease) in deferred tax asset	$ 300
Increase (decrease) in unrecognized tax benefits							$ 300
Effective tax rate reconciliation, unrecognized tax benefits, percent							1.50%
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent							1.20%
TCJA, provisional liability	8,200		$ 8,200	$ 8,200			$ 8,200
TJCA , provisional liability, non-current	7,700		7,700	7,700			7,700
Provisional tax cost						$ 13,000		200
Provisional toll tax charge						10,100
Deferred tax liability foreign taxes	1,289		1,289	1,289	$ 2,240	4,500	$ 1,289	$ 2,240	$ 4,500
Deferred tax asset offset						1,100			$ 1,100
Remeasurement of deferred tax assets and liabilities						600
GILTI, deferred tax cost					1,400
Increase (decrease) in effective tax rate (as a percent)								(77.60%)
Effective income tax rate reconciliation, deduction								1.70%
Effective income tax rate reconciliation, TCJA							3.90%	1.90%	(73.30%)
Effective income tax rate reconciliation, GILTI								1.60%
Effective income tax rate reconciliation, stock-based compensation								1.50%	2.00%
Effective income tax rate reconciliation, divestiture of business								0.80%
Unrecognized tax benefits	3,853		3,853	3,853	3,326	3,151	$ 3,853	$ 3,326	$ 3,151		$ 3,041
Unrecognized tax benefits, interest on income tax expense							50	53	$ 60
Unrecognized tax benefits, interest on income taxes accrued	559		559	559	$ 503		559	$ 503
Income tax expense recorded related to TRAF							$ 100
TRAF effect on tax rate							0.60%
Income tax expense related to change in tax rate from TRAF							$ 600
Deferred tax asset recorded related to TRAF							900
Deferred tax expense related to TRAF							$ 450
Increase (decrease) to federal tax basis step-up			300
TCJA, undistributed foreign earnings percent related to cash and cash equivalents									15.50%
TCJA, undistributed foreign earnings percent related to earnings other than cash and cash equivalents									8.00%
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Deferred tax liability foreign taxes						$ 100			$ 100
Increase (decrease) in effective tax rate (as a percent)							0.60%
Administration of the Treasury, Belgium
Tax Credit Carryforward [Line Items]
Increase (decrease) in effective tax rate (as a percent)							3.40%		3.40%
Accrued Taxes On Income
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits	$ 900		$ 900	$ 900			$ 900
Minimum
Tax Credit Carryforward [Line Items]
TRAF, expected benefit on transitional provision							200
Maximum
Tax Credit Carryforward [Line Items]
TRAF, expected benefit on transitional provision							$ 500
Pending Litigation
Tax Credit Carryforward [Line Items]
Loss contingency, estimate of possible loss										$ 4,000
Subsequent Event | Internal Revenue Service (IRS)
Tax Credit Carryforward [Line Items]
Payment on unrecognized tax benefit liability		$ 600