|
Business Segments - Segment Revenues (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | $ 3,513 | $ 3,293 |
| Total segment | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 3,455 | 3,236 |
| Other unallocated corporate | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 58 | 57 |
| North American Full-Service Segment | Total segment | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 2,175 | 2,049 |
| North American Limited-Service Segment | Total segment | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | 738 | 667 |
| International Segment | Total segment | ||
| Segment Reporting, Revenue Reconciling Item [Line Items] | ||
| Revenues | $ 542 | $ 520 |