Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity [Abstract]
Cumulative translation adjustments, Pretax	$ 94	$ (340)
Cumulative translation adjustment, Net of Tax	125	(352)
Retirement plans and other retiree benefits:
Net actuarial gain (loss) and prior service costs arising during the period, Pretax	0	(1)
Amortization of net actuarial loss, transition and prior service costs, Pretax	16	22
Retirement plans and other retiree benefits adjustments, Pretax	16	21
Net actuarial gain (loss) and prior service costs arising during the period, Net of Tax	0	(1)
Amortization of net actuarial loss, transition and prior service costs, Net of Tax	11	14
Retirement plans and other retiree benefits adjustments, Net of Tax	11	13
Available-for-sale securities:
Unrealized gains (losses) on available-for-sale securities, Pretax	0	(1)
Reclassification of (gains) losses into net earnings on available-for-sale securities, Pretax	0	0
Gains (losses) on available-for-sale securities, Pretax	0	(1)
Unrealized gains (losses) on available-for-sale securities, Net of Tax	0	(1)
Reclassification of (gains) losses into net earnings on available-for-sale securities, Net of Tax	0	0
Gains (losses) on available-for-sale securities, Net of Tax	0	(1)
Cash flow hedges:
Unrealized gains (losses) on cash flow hedges, Pretax	(14)	6
Reclassification of (gains) losses into net earnings on cash flow hedges, Pretax	(2)	(6)
Gains (losses) on cash flow hedges, Pretax	(16)	0
Unrealized gains (losses) on cash flow hedges, Net of Tax	(10)	4
Reclassification of (gains) losses into net earnings on cash flow hedges, Net of Tax	(1)	(4)
Gains (losses) on cash flow hedges, Net of Tax	(11)	0
Total Other comprehensive income (loss), Pretax	94	(320)
Total Other comprehensive income (loss), Net of Tax	$ 125	$ (340)