Guarantor and Non-Guarantor Consolidating Condensed Financial Statements - Consolidating Condensed Statements of Cash Flows (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities
Net (loss) income	$ (22)	$ (113)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	113	101
Amortization of customer loyalty payments	37	29
Gain on sale of shares of Orbitz Worldwide	(52)
Amortization of debt finance costs	6	19
Accrual of repayment fee and amortization of debt discount	5	1
Loss on early extinguishment of debt	14	49
Payment-in-kind interest	12	9
Share of earnings (losses) in equity method investments	3	(2)
Equity-based compensation	9	2
Deferred income taxes	5	0
Equity in losses (earnings) of subsidiaries
Pension liability contribution	(3)	0
Customer loyalty payments	(45)	(36)
Changes in assets and liabilities:
Accounts receivable	(38)	(65)
Other current assets	9	(4)
Accounts payable, accrued expenses and other current liabilities	(22)	(9)
Other	11	31
Net cash (used in) provided by operating activities	42	12
Investing activities
Property and equipment additions	(54)	(46)
Proceeds from sale of shares of Orbitz Worldwide	54
Other		(6)
Purchase of non-controlling interest in a subsidiary	(65)
Business acquired	(10)
Purchase of equity method investment	(10)
Net intercompany funding
Net cash provided by (used in) investing activities	(85)	(52)
Financing activities
Proceeds from revolver borrowings	50	53
Repayment of revolver borrowings	(50)	(73)
Repayment of capital lease obligations	(15)	(8)
Release of cash provided as collateral	9	137
Repayment of term loans	(8)	(1,659)
Payment related to early extinguishment of debt	(3)
Proceeds from new term loans		2,169
Repurchase of Senior Notes		(413)
Cash provided as collateral		(93)
Debt finance costs		(55)
Distribution to a parent company		(6)
Other	(1)	(4)
Net cash provided by (used in) financing activities	(18)	48
Effect of changes in exchange rates on cash and cash equivalents		(1)
Net (decrease) increase in cash and cash equivalents	(61)	7
Cash and cash equivalents at beginning of period	154	110
Cash and cash equivalents at end of period	93	117
Parent Guarantor [Member]
Operating activities
Net (loss) income	(25)	(115)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization
Amortization of customer loyalty payments
Gain on sale of shares of Orbitz Worldwide
Amortization of debt finance costs
Accrual of repayment fee and amortization of debt discount
Loss on early extinguishment of debt
Payment-in-kind interest
Share of earnings (losses) in equity method investments
Equity-based compensation	9	2
Deferred income taxes
Equity in losses (earnings) of subsidiaries	10	99
Pension liability contribution
Customer loyalty payments
Changes in assets and liabilities:
Accounts receivable
Other current assets	(2)
Accounts payable, accrued expenses and other current liabilities	6
Other
Net cash (used in) provided by operating activities	(12)	(14)
Investing activities
Property and equipment additions
Proceeds from sale of shares of Orbitz Worldwide
Purchase of non-controlling interest in a subsidiary
Business acquired
Purchase of equity method investment
Net intercompany funding	12	20
Net cash provided by (used in) investing activities	12	20
Financing activities
Proceeds from revolver borrowings
Repayment of revolver borrowings
Repayment of capital lease obligations
Release of cash provided as collateral
Repayment of term loans
Payment related to early extinguishment of debt
Repurchase of Senior Notes
Distribution to a parent company		(6)
Other
Net cash provided by (used in) financing activities		(6)
Net (decrease) increase in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Intermediate Parent Guarantor [Member]
Operating activities
Net (loss) income	(165)	(196)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization
Amortization of customer loyalty payments
Gain on sale of shares of Orbitz Worldwide	(52)
Amortization of debt finance costs
Accrual of repayment fee and amortization of debt discount
Loss on early extinguishment of debt
Payment-in-kind interest
Share of earnings (losses) in equity method investments	3	(2)
Equity-based compensation
Deferred income taxes
Equity in losses (earnings) of subsidiaries	217	198
Pension liability contribution
Customer loyalty payments
Changes in assets and liabilities:
Accounts receivable
Other current assets
Accounts payable, accrued expenses and other current liabilities	1
Other
Net cash (used in) provided by operating activities	(213)
Investing activities
Property and equipment additions
Proceeds from sale of shares of Orbitz Worldwide	54
Purchase of non-controlling interest in a subsidiary
Business acquired
Purchase of equity method investment
Net intercompany funding	159
Net cash provided by (used in) investing activities	213
Financing activities
Proceeds from revolver borrowings
Repayment of revolver borrowings
Repayment of capital lease obligations
Release of cash provided as collateral
Repayment of term loans
Payment related to early extinguishment of debt
Repurchase of Senior Notes
Other
Net cash provided by (used in) financing activities
Net (decrease) increase in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Issuer [Member]
Operating activities
Net (loss) income	(217)	(198)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization
Amortization of customer loyalty payments
Gain on sale of shares of Orbitz Worldwide
Amortization of debt finance costs	6	19
Accrual of repayment fee and amortization of debt discount	5	1
Loss on early extinguishment of debt	14	49
Payment-in-kind interest	12	9
Share of earnings (losses) in equity method investments
Equity-based compensation
Deferred income taxes
Equity in losses (earnings) of subsidiaries	38	(28)
Pension liability contribution
Customer loyalty payments
Changes in assets and liabilities:
Accounts receivable
Other current assets	4
Accounts payable, accrued expenses and other current liabilities	12	19
Other	7	21
Net cash (used in) provided by operating activities	(157)	(108)
Investing activities
Property and equipment additions
Proceeds from sale of shares of Orbitz Worldwide
Purchase of non-controlling interest in a subsidiary
Business acquired
Purchase of equity method investment
Net intercompany funding	164	35
Net cash provided by (used in) investing activities	164	35
Financing activities
Proceeds from revolver borrowings	50	53
Repayment of revolver borrowings	(50)	(73)
Repayment of capital lease obligations
Release of cash provided as collateral	9	137
Repayment of term loans	(8)	(1,659)
Payment related to early extinguishment of debt	(3)
Proceeds from new term loans		2,169
Repurchase of Senior Notes		(413)
Cash provided as collateral		(93)
Debt finance costs		(55)
Other	(1)	(4)
Net cash provided by (used in) financing activities	(3)	62
Net (decrease) increase in cash and cash equivalents	4	(11)
Cash and cash equivalents at beginning of period	25	51
Cash and cash equivalents at end of period	29	40
Guarantor Subsidiaries [Member]
Operating activities
Net (loss) income	(38)	28
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	94	74
Amortization of customer loyalty payments	11	8
Gain on sale of shares of Orbitz Worldwide
Amortization of debt finance costs
Accrual of repayment fee and amortization of debt discount
Loss on early extinguishment of debt
Payment-in-kind interest
Share of earnings (losses) in equity method investments
Equity-based compensation
Deferred income taxes	5
Equity in losses (earnings) of subsidiaries
Pension liability contribution	(3)
Customer loyalty payments	(22)	(8)
Changes in assets and liabilities:
Accounts receivable	9	(25)
Other current assets	6	7
Accounts payable, accrued expenses and other current liabilities	(4)	28
Other	13	21
Net cash (used in) provided by operating activities	71	133
Investing activities
Property and equipment additions	(52)	(44)
Proceeds from sale of shares of Orbitz Worldwide
Other		(6)
Purchase of non-controlling interest in a subsidiary
Business acquired
Purchase of equity method investment
Net intercompany funding	(50)	(75)
Net cash provided by (used in) investing activities	(102)	(125)
Financing activities
Proceeds from revolver borrowings
Repayment of revolver borrowings
Repayment of capital lease obligations	(15)	(8)
Release of cash provided as collateral
Repayment of term loans
Payment related to early extinguishment of debt
Repurchase of Senior Notes
Other
Net cash provided by (used in) financing activities	(15)	(8)
Effect of changes in exchange rates on cash and cash equivalents		(1)
Net (decrease) increase in cash and cash equivalents	(46)	(1)
Cash and cash equivalents at beginning of period	51	3
Cash and cash equivalents at end of period	5	2
Non-Guarantor Subsidiaries [Member]
Operating activities
Net (loss) income	158	99
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	19	27
Amortization of customer loyalty payments	26	21
Gain on sale of shares of Orbitz Worldwide
Amortization of debt finance costs
Accrual of repayment fee and amortization of debt discount
Loss on early extinguishment of debt
Payment-in-kind interest
Share of earnings (losses) in equity method investments
Equity-based compensation
Deferred income taxes
Equity in losses (earnings) of subsidiaries
Pension liability contribution
Customer loyalty payments	(23)	(28)
Changes in assets and liabilities:
Accounts receivable	47	(40)
Other current assets	1	(11)
Accounts payable, accrued expenses and other current liabilities	(37)	(56)
Other	(9)	(11)
Net cash (used in) provided by operating activities	88	1
Investing activities
Property and equipment additions	(2)	(2)
Proceeds from sale of shares of Orbitz Worldwide
Purchase of non-controlling interest in a subsidiary	(65)
Business acquired	(10)
Purchase of equity method investment	(10)
Net intercompany funding	(20)	20
Net cash provided by (used in) investing activities	(107)	18
Financing activities
Proceeds from revolver borrowings
Repayment of revolver borrowings
Repayment of capital lease obligations
Release of cash provided as collateral
Repayment of term loans
Payment related to early extinguishment of debt
Repurchase of Senior Notes
Other
Net cash provided by (used in) financing activities
Net (decrease) increase in cash and cash equivalents	(19)	19
Cash and cash equivalents at beginning of period	78	56
Cash and cash equivalents at end of period	59	75
Eliminations [Member]
Operating activities
Net (loss) income	265	269
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization
Amortization of customer loyalty payments
Gain on sale of shares of Orbitz Worldwide
Amortization of debt finance costs
Accrual of repayment fee and amortization of debt discount
Loss on early extinguishment of debt
Payment-in-kind interest
Share of earnings (losses) in equity method investments
Equity-based compensation
Deferred income taxes
Equity in losses (earnings) of subsidiaries	(265)	(269)
Pension liability contribution
Customer loyalty payments
Changes in assets and liabilities:
Accounts receivable
Other current assets
Accounts payable, accrued expenses and other current liabilities
Other
Net cash (used in) provided by operating activities	265
Investing activities
Property and equipment additions
Proceeds from sale of shares of Orbitz Worldwide
Purchase of non-controlling interest in a subsidiary
Business acquired
Purchase of equity method investment
Net intercompany funding	(265)
Net cash provided by (used in) investing activities	(265)
Financing activities
Proceeds from revolver borrowings
Repayment of revolver borrowings
Repayment of capital lease obligations
Release of cash provided as collateral
Repayment of term loans
Payment related to early extinguishment of debt
Repurchase of Senior Notes
Other
Net cash provided by (used in) financing activities
Net (decrease) increase in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period