Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585

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- Definition

Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets.

+ References

No definition available.

+ Details

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Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets		$ 569		$ 966
Net cash provided by (used in) operating activities		2,051	$ 2,265
Net cash provided by (used in) investing activities		(2,139)	(2,918)
Guarantor Subsidiaries
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets		45		695
Net cash provided by (used in) operating activities		61	(57)
Net cash provided by (used in) investing activities		(62)	72
Guarantor Subsidiaries \| Restatement Adjustment \| Prior Period Misstatements Corrected in Current Period
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets				(453)
Parent
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets		4,935		4,503
Net cash provided by (used in) operating activities		(2,129)	(1,662)
Net cash provided by (used in) investing activities		1,082	1,229
Parent \| Restatement Adjustment \| Prior Period Misstatements Corrected in Current Period
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by (used in) operating activities	$ 411
Net cash provided by (used in) investing activities	411
Non-Guarantor Subsidiaries
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets		275		450
Net cash provided by (used in) operating activities		4,838	4,448
Net cash provided by (used in) investing activities		$ (2,876)	$ (3,142)
Non-Guarantor Subsidiaries \| Restatement Adjustment \| Prior Period Misstatements Corrected in Current Period
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prepaid expenses and other assets				$ 453
Net cash provided by (used in) operating activities	(411)
Net cash provided by (used in) investing activities	$ (411)