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Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Value of stock issued as a result of the exercise of stock options.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.

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Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new revenue recognition standard					$ (261)
Balance, beginning of period at Dec. 31, 2017		$ 0	$ 1	$ 43,797	(18,900)	$ (662)	$ (22,258)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				98
Exercise of stock options				22
Retirement of treasury stock				(59)			59
Dividends				(138)
Acquisition of noncontrolling interest				0
Net earnings	$ 911				911
Other comprehensive income	16					16
Reclassification of income tax effects of the Tax Reform Act					0	0
Class B Common Stock purchased							(400)
Shares paid for tax withholding for stock-based compensation							(59)
Balance, end of period at Jun. 30, 2018	2,167	0	1	43,720	(18,250)	(646)	(22,658)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new revenue recognition standard					0
Balance, beginning of period at Mar. 31, 2018		0	1	43,743	(18,650)	(653)	(22,458)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				47
Exercise of stock options				6
Retirement of treasury stock				(7)			7
Dividends				(69)
Acquisition of noncontrolling interest				0
Net earnings	400				400
Other comprehensive income	7					7
Reclassification of income tax effects of the Tax Reform Act					0	0
Class B Common Stock purchased							(200)
Shares paid for tax withholding for stock-based compensation							(7)
Balance, end of period at Jun. 30, 2018	2,167	0	1	43,720	(18,250)	(646)	(22,658)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new revenue recognition standard					0
Balance, beginning of period at Dec. 31, 2018	2,804	0	1	43,637	(17,201)	(775)	(22,858)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				75
Exercise of stock options				11
Retirement of treasury stock				(43)			43
Dividends				(136)
Acquisition of noncontrolling interest				(10)
Net earnings	2,023				2,023
Other comprehensive income	29					29
Reclassification of income tax effects of the Tax Reform Act	176				176	176
Class B Common Stock purchased							0
Shares paid for tax withholding for stock-based compensation							(43)
Balance, end of period at Jun. 30, 2019	4,753	0	1	43,534	(15,002)	(922)	(22,858)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new revenue recognition standard					0
Balance, beginning of period at Mar. 31, 2019		0	1	43,582	(15,442)	(934)	(22,858)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation				36
Exercise of stock options				0
Retirement of treasury stock				(6)			6
Dividends				(68)
Acquisition of noncontrolling interest				(10)
Net earnings	440				440
Other comprehensive income	12					12
Reclassification of income tax effects of the Tax Reform Act					0	0
Class B Common Stock purchased							0
Shares paid for tax withholding for stock-based compensation							(6)
Balance, end of period at Jun. 30, 2019	$ 4,753	$ 0	$ 1	$ 43,534	$ (15,002)	$ (922)	$ (22,858)