Acquisitions (Consideration Transferred) (Details) - National Pump $ in Millions	1 Months Ended
	Apr. 30, 2014 USD ($)
Business Acquisition [Line Items]
Cash consideration	$ 773	[1]
Contingent consideration	76	[2]
Total purchase consideration	849	[3]
Cash consideration, hold back amount	58
Stock issued, excluded from purchase consideration	$ 15

[1] Includes a ‘hold back’ of $58 that was paid in April 2015.

[2] Reflects the acquisition date fair value of the contingent consideration that was paid in June 2015 as discussed in note 6 to our condensed consolidated financial statements.

[3] Total purchase consideration excludes $15 of stock which was issued in connection with the acquisition and will be treated as compensation for book purposes but primarily represents deductible goodwill for income tax purposes.