Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

Goodwill (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Goodwill
Goodwill	$ 21,733	$ 21,732
Consumer
Goodwill
Goodwill	10,379
Business
Goodwill
Goodwill	6,243
Wholesale
Goodwill
Goodwill	3,283
Data hosting
Goodwill
Goodwill	$ 1,828