Segment Information - Total Assets Fixed Assets Net and Total Fixed Asset Additions By Segment (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
---|---|---|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
Segment Reporting, Asset Reconciling Item [Line Items] | ||
Total assets | $ 40,159 | $ 32,555 |
Property and equipment, net | 10,949 | 7,060 |
Total property and equipment additions | 6,373 | 4,317 |
North America
|
||
Segment Reporting, Asset Reconciling Item [Line Items] | ||
Total assets | 26,108 | 20,703 |
Property and equipment, net | 8,447 | 5,481 |
Total property and equipment additions | 4,837 | 3,348 |
International
|
||
Segment Reporting, Asset Reconciling Item [Line Items] | ||
Total assets | 14,051 | 11,852 |
Property and equipment, net | 2,502 | 1,579 |
Total property and equipment additions | $ 1,536 | $ 969 |