Fair Value (Details) - USD ($) $ in Millions	Apr. 04, 2021	Dec. 31, 2020
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets (liabilities)
Cash and equivalents	$ 0	$ 17
Available-for-sale debt securities	0	0
Equity securities	57	58
Other investments	0	0
Cash flow hedges	0	0
Short- and long-term debt principal	0	0
Significant Other Observable Inputs (Level 2)
Financial assets (liabilities)
Cash and equivalents	6	2
Available-for-sale debt securities	143	134
Equity securities	0	0
Other investments	0	0
Cash flow hedges	388	419
Short- and long-term debt principal	(14,244)	(14,606)
Significant Unobservable Inputs (Level 3)
Financial assets (liabilities)
Cash and equivalents	0	0
Available-for-sale debt securities	0	0
Equity securities	0	0
Other investments	9	9
Cash flow hedges	0	0
Short- and long-term debt principal	0	0
Carrying Value
Financial assets (liabilities)
Cash and equivalents	6	19
Available-for-sale debt securities	143	134
Equity securities	57	58
Other investments	9	9
Cash flow hedges	388	419
Short- and long-term debt principal	(13,293)	(13,117)
Fair Value
Financial assets (liabilities)
Cash and equivalents	6	19
Available-for-sale debt securities	143	134
Equity securities	57	58
Other investments	9	9
Cash flow hedges	388	419
Short- and long-term debt principal	$ (14,244)	$ (14,606)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of investment in equity security without readily determinable fair value.

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