Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Per Share

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- Definition

Equity Method Investment, Other than Temporary Impairment, After Tax

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Equity Method Investment, Other than Temporary Impairment, Dollars Per Share

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- Definition

Gain (Loss) on Sale of Properties, After Tax

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Gain (Loss) on Sale of Properties, After Tax Per Share Amount

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- Definition

Income (Loss) From Discontinued Operations, Net Of Tax, Attributable to Parent, Per Share

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- Definition

Quarterly Financial Information [Line Items]

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- Definition

Severance Charges, Net Of Tax

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- Definition

Severance Charges, Per Share

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Summary of Quarterly Information (Unaudited) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended						12 Months Ended
	Mar. 04, 2019	Jul. 31, 2020	Dec. 31, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Sep. 29, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information [Line Items]
Equity method investment impairment									$ 128	$ 0	$ 0
Net loss from discontinued operations			$ 0	$ 55	$ 0	$ 0
Net loss from discontinued operations (in dollars per share)				$ 0.20
Severance charges			27						27	0	96
Severance charges, net of tax			$ 21						$ 21
Severance charges (in dollars per share)			$ 0.08						$ 0.08
Gain on property sale									$ 0	51	0
Foreign derived intangible income deduction related to prior year	$ 75						$ 62	$ 65	21	98
Foreign derived intangible income deduction related to prior year (in dollars per share)	$ 0.26						$ 0.22	$ 0.23
AMMROC
Quarterly Financial Information [Line Items]
Equity method investment impairment		$ 128			128						$ 110
Equity method investment impairment, after tax					$ 96				$ 96
Equity method investment impairment (in dollars per share)					$ 0.34
Land
Quarterly Financial Information [Line Items]
Gain on property sale								$ 51		$ 51
Gain on property sale, after tax								$ 38
Gain on property sale per share, after tax (in dollars per share)								$ 0.13