RETIREMENT BENEFITS PLANS

The components of retirement benefits expense follow:



	United States pension benefit expense						Non-United States pension benefit expense						Other postretirement benefits expense
	Three months ended June 30
	2015			2014			2015			2014			2015			2014
Service cost	$	30		$	29		$	19		$	17		$	1		$	5
Interest cost	39			41			18			22			6			10
Expected return on plan assets	(65		)	(62		)	(25		)	(25		)	(1		)	(2		)
Amortization	30			23			10			7			1			2
	34			31			22			21			7			15
Settlements	19			14			—			—			—			—
Total expense	$	53		$	45		$	22		$	21		$	7		$	15



	United States pension benefit expense						Non-United States pension benefit expense						Other postretirement benefits expense
	Six months ended June 30
	2015			2014			2015			2014			2015			2014
Service cost	$	61		$	58		$	37		$	33		$	3		$	9
Interest cost	78			81			36			44			12			19
Expected return on plan assets	(131		)	(123		)	(50		)	(50		)	(2		)	(3		)
Amortization	60			46			20			14			1			4
	68			62			43			41			14			29
Settlements	33			48			—			—			—			—
Total expense	$	101		$	110		$	43		$	41		$	14		$	29