Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs

The components of the net periodic benefit cost for defined benefit and other post-retirement plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Three Months Ended March 31,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	52		$	61		$	1		$	1
Interest cost	146			161			2			3
Expected return on plan assets	(243		)	(248		)	—			—
Amortization of prior service credit	—			(3		)	—			—
Recognized actuarial loss	76			51			—			—
Net periodic benefit cost	$	31		$	22		$	3		$	4
Curtailment (credit)	—			(65		)	—			—
Plan termination	—			—			(128		)	—
Total cost (credit)	$	31		$	(43	)	$	(125	)	$	4
U.S. Plans only	Pension						Post-retirement
For the Three Months Ended March 31,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	30		$	22		$	1		$	—
Interest cost	62			63			1			2
Expected return on plan assets	(92		)	(86		)	—			—
Amortization of prior service credit	—			(2		)	—			—
Recognized actuarial loss	45			26			—			—
Net periodic benefit cost	$	45		$	23		$	2		$	2
Plan termination	—			—			(128		)	—
Total cost (credit)	$	45		$	23		$	(126	)	$	2

In March 2015, the Company amended its U.S. Post-65 retiree medical reimbursement plan (the "RRA plan"), resulting in its termination, with benefits to certain participants paid through December 31, 2016. As a result of the termination of the RRA plan, the Company recognized a net credit of approximately $125 million in the first quarter of 2015.

Significant non-U.S. Plans only	Pension						Post-retirement
For the Three Months Ended March 31,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	22		$	39		$	—	$	1
Interest cost	84			98			1		1
Expected return on plan assets	(151		)	(162		)	—		—
Amortization of prior service cost	—			(1		)	—		—
Recognized actuarial loss	31			25			—		—
Net periodic benefit cost	$	(14	)	$	(1	)	$	1	$	2
Curtailment (credit)	—			(65		)	—		—
Total (credit) cost	$	(14	)	$	(66	)	$	1	$	2

Schedule of Assumptions Used

The weighted average actuarial assumptions utilized to calculate the net periodic benefit costs for the U.S. and significant non-U.S. defined benefit plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension Benefits				Post-retirement Benefits
March 31,	2015		2014		2015		2014
Weighted average assumptions:
Expected return on plan assets	7.25	%	7.53	%	—	%	—	%
Discount rate	3.79	%	4.74	%	4.08	%	5.03	%
Rate of compensation increase	2.42	%	2.64	%	—	%	—	%