CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 3,586us-gaap_NetIncomeLoss	$ 3,452us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(923)	65
Available-for-sale investments:
Change in net unrealized gains	221	217
Less: reclassification adjustment for net gains included in net income	(27)	(67)
Net change (net of tax effect of $42 and $61)	194	150
Cash flow hedges:
Change in net unrealized gains	562	10
Less: reclassification adjustment for net gains included in net income	(231)	(5)
Net change (net of tax effect of $30 and $192)	331	5
Other comprehensive income (loss)	(398)	220
Comprehensive income	$ 3,188us-gaap_ComprehensiveIncomeNetOfTax	$ 3,672us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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