This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Value of stock issued pursuant to acquisitions during the period.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.

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No definition available.

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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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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Consolidated Statement of Equity Statement - USD ($) $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Including Portion Attributable to Noncontrolling Interest [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance (Predecessor) at Dec. 31, 2015	$ 10,200	$ 237	$ 288	$ 11,081	$ 14,510	$ (9,396)	$ (6,727)	$ 207
Net (loss) income \| Predecessor	2,262				2,248			14
Other comprehensive (loss) income \| Predecessor	(1,271)					(1,271)
Common dividends \| Predecessor	$ (1,013)				(1,001)			(12)
Dividends per share of common stock \| Predecessor	$ 1.14
Preferred dividends \| Predecessor	$ (7)				(7)
Common stock issued - compensation plans \| Predecessor	207			207
Common stock repurchased \| Predecessor	(419)		(1)				(416)	(2)
Common stock retired \| Predecessor	3			(70)	(343)		416
Sale of majority interest in a consolidated subsidiary \| Predecessor	(8)			(4)				(4)
Ending Balance (Predecessor) at Sep. 30, 2016	9,954	237	287	11,214	15,407	(10,667)	(6,727)	203
Beginning Balance (Predecessor) at Dec. 31, 2016	10,196	237	285	11,190	14,924	(9,911)	(6,727)	198
Net (loss) income \| Predecessor	1,761				1,741			20
Other comprehensive (loss) income \| Predecessor	1,289					1,289
Common dividends \| Predecessor	$ (995)				(991)			(4)
Dividends per share of common stock \| Predecessor	$ 1.14
Preferred dividends \| Predecessor	$ (7)				(7)
Common stock issued - compensation plans \| Predecessor	275		2	273
Common stock repurchased \| Predecessor	0
Common stock retired \| Predecessor	0		(26)	(1,044)	(5,657)		6,727
Sale of majority interest in a consolidated subsidiary \| Predecessor	(2)							(2)
Ending Balance (Predecessor) at Aug. 31, 2017	12,517	237	$ 261	10,419	10,010	(8,622)	$ 0	212
Ending Balance (Successor) at Aug. 31, 2017	75,081	239		74,680	0	0		162
Net (loss) income \| Successor	(295)				(293)			(2)
Other comprehensive (loss) income \| Successor	(572)					(572)
Issuance of parent company stock \| Successor	11			11
Common stock issued - compensation plans \| Successor	15			15
Other \| Successor	(2)				(2)
Ending Balance (Successor) at Sep. 30, 2017	$ 74,238	$ 239		$ 74,706	$ (295)	$ (572)		$ 160