Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Net Income Attributable to NRG Energy, Inc. After Removing Net Loss from Noncontrolling Interest

The following table reflects the net income attributable to NRG Energy, Inc. after removing the net loss attributable to the noncontrolling interest and redeemable noncontrolling interest:



	Three months ended March 31,
	2019		2018
	(In millions)
Income from continuing operations, net of income tax	$	94	$	245
Income from discontinued operations, net of income tax	388		34
Net income attributable to NRG Energy, Inc.	$	482	$	279

Other Balance Sheet Information

The following table presents the allowance for doubtful accounts included in accounts receivable, net; accumulated depreciation included in property, plant and equipment, net; accumulated amortization included in intangible assets, net and accumulated amortization included in out-of-market contracts, net:



	March 31, 2019		December 31, 2018
	(In millions)
Accounts receivable allowance for doubtful accounts	$	32	$	32
Property, plant and equipment accumulated depreciation	1,610		1,811
Intangible assets accumulated amortization	1,171		1,149
Out-of-market contracts accumulated amortization	—		37

Reconciliation of Cash and Cash Equivalents, Restricted Cash and Funds Deposited by Counterparties

The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows.



	March 31, 2019		December 31, 2018		March 31, 2018		December 31, 2017
	(In millions)
Cash and cash equivalents	$	859	$	563	$	514	$	770
Funds deposited by counterparties	11		33		241		37
Restricted cash	15		17		261		279
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	885	$	613	$	1,016	$	1,086