Consolidated Statement of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Statement of Comprehensive Income [Abstract]
Tax provision (benefit) on currency translation adjustment	$ (76)	$ 77	$ (71)	$ 92
Tax benefit on unrealized holding losses on hedging instruments arising during the period	0	12	20	12
Tax benefit on reclassification adjustment for losses on hedging instruments recognized in net income	2	1	4	3
Tax benefit (provision) on pension and other postretirement benefit liability adjustments arising during the period	1	(2)	2	2
Tax benefit on amortization of net loss and prior service benefit included in net periodic pension cost	$ 1	$ 0	$ 4	$ 2

Amount of tax expense (benefit), before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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