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Components of Income Tax (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2013 CNY	Dec. 31, 2012 CNY	Dec. 31, 2011 CNY
Income Tax Disclosure [Abstract]
Current income tax	$ 331,530	2,006,980	1,888,378	1,337,469
Income tax refund due to reduced tax rate	(84,029)	(508,686)	(255,189)	(83,907)
Adjustments of deferred tax assets due to reduced tax rates	3,564	21,573	0	18,216
Deferred income tax (benefit) expense	51,053	309,063	(59,030)	(82,917)
Taxation for the year	$ 302,118	1,828,930	1,574,159	1,188,861

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations exclude adjustments of deferred tax assets due to reduced tax rates.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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