|
Financial Instruments (Securities Repurchase and Reverse Repurchase Arrangements) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| short-term borrowings | |
| Financial Instruments [Line Items] | |
| Securities for Reverse Repurchase Agreements | $ 169 |
| Cash and cash equivalents | |
| Financial Instruments [Line Items] | |
| Securities for Reverse Repurchase Agreements | $ 11,500 |