TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect

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- Definition

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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- Definition

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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- Definition

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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

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

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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 stockholders' equity including the portion attributable to noncontrolling interests, after the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Accumulated Other Comprehensive Income Loss - AOCI Rollforward (Details) - USD ($) $ in Millions		3 Months Ended
	Jan. 01, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 13,101
OCI, net of tax		694	$ (897)
Ending balance		14,340	13,143
TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	$ (88)
Equity securities and shadow DAC [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of accounting changes, net of tax [1]	93
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,931	24	1,931
Cumulative effect of accounting changes, net of tax [1]					$ 273
Adjusted balance, beginning of period					2,204
OCI before reclassifications		696	(882)
Amounts reclassified from AOCI		(17)	27
OCI, net of tax		679	(855)
Ending balance		703	1,349
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(3)	(4)	(3)
Cumulative effect of accounting changes, net of tax [1]					0
Adjusted balance, beginning of period					(3)
OCI before reclassifications		1	(2)
Amounts reclassified from AOCI		0	0
OCI, net of tax		1	(2)
Ending balance		(3)	(5)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	18	(5)	18
Cumulative effect of accounting changes, net of tax [1]					2
Adjusted balance, beginning of period					20
OCI before reclassifications		6	(31)
Amounts reclassified from AOCI		(1)	(13)
OCI, net of tax		5	(44)
Ending balance		0	(24)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	34	30	34
Cumulative effect of accounting changes, net of tax [1]					4
Adjusted balance, beginning of period					38
OCI before reclassifications		1	(6)
Amounts reclassified from AOCI		0	0
OCI, net of tax		1	(6)
Ending balance		31	32
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,317)	(1,624)	(1,317)
Cumulative effect of accounting changes, net of tax [1]					(284)
Adjusted balance, beginning of period					(1,601)
OCI before reclassifications		(1)	1
Amounts reclassified from AOCI		9	9
OCI, net of tax		8	10
Ending balance		(1,616)	(1,591)
AOCI Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 663	(1,579)	663
Cumulative effect of accounting changes, net of tax [1]				$ 0	(5)
Adjusted balance, beginning of period				$ (1,579)	$ 658
OCI before reclassifications		703	(920)
Amounts reclassified from AOCI		(9)	23
OCI, net of tax		694	(897)
Ending balance		$ (885)	$ (239)